diff --git a/BUILD b/BUILD
index e5df1cdc50842e63a5d669023b8b951f81948a4f..c4632fc0a24b7df0f9897f278229ce3d8ce85089 100644
--- a/BUILD
+++ b/BUILD
@@ -75,6 +75,7 @@ grpc_cc_library(
         "grpc_transport_chttp2_client_secure",
         "grpc_transport_chttp2_server_insecure",
         "grpc_transport_chttp2_server_secure",
+        "grpc_max_age_filter",
     ],
 )
 
@@ -112,6 +113,7 @@ grpc_cc_library(
         "grpc_resolver_sockaddr",
         "grpc_transport_chttp2_client_insecure",
         "grpc_transport_chttp2_server_insecure",
+        "grpc_max_age_filter",
     ],
 )
 
@@ -440,7 +442,6 @@ grpc_cc_library(
         "src/core/lib/channel/handshaker_registry.c",
         "src/core/lib/channel/http_client_filter.c",
         "src/core/lib/channel/http_server_filter.c",
-        "src/core/lib/channel/max_age_filter.c",
         "src/core/lib/channel/message_size_filter.c",
         "src/core/lib/compression/compression.c",
         "src/core/lib/compression/message_compress.c",
@@ -568,7 +569,6 @@ grpc_cc_library(
         "src/core/lib/channel/handshaker_registry.h",
         "src/core/lib/channel/http_client_filter.h",
         "src/core/lib/channel/http_server_filter.h",
-        "src/core/lib/channel/max_age_filter.h",
         "src/core/lib/channel/message_size_filter.h",
         "src/core/lib/compression/algorithm_metadata.h",
         "src/core/lib/compression/message_compress.h",
@@ -693,46 +693,60 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_client_channel",
     srcs = [
-        "src/core/ext/client_channel/channel_connectivity.c",
-        "src/core/ext/client_channel/client_channel.c",
-        "src/core/ext/client_channel/client_channel_factory.c",
-        "src/core/ext/client_channel/client_channel_plugin.c",
-        "src/core/ext/client_channel/connector.c",
-        "src/core/ext/client_channel/http_connect_handshaker.c",
-        "src/core/ext/client_channel/http_proxy.c",
-        "src/core/ext/client_channel/lb_policy.c",
-        "src/core/ext/client_channel/lb_policy_factory.c",
-        "src/core/ext/client_channel/lb_policy_registry.c",
-        "src/core/ext/client_channel/parse_address.c",
-        "src/core/ext/client_channel/proxy_mapper.c",
-        "src/core/ext/client_channel/proxy_mapper_registry.c",
-        "src/core/ext/client_channel/resolver.c",
-        "src/core/ext/client_channel/resolver_factory.c",
-        "src/core/ext/client_channel/resolver_registry.c",
-        "src/core/ext/client_channel/retry_throttle.c",
-        "src/core/ext/client_channel/subchannel.c",
-        "src/core/ext/client_channel/subchannel_index.c",
-        "src/core/ext/client_channel/uri_parser.c",
+        "src/core/ext/filters/client_channel/channel_connectivity.c",
+        "src/core/ext/filters/client_channel/client_channel.c",
+        "src/core/ext/filters/client_channel/client_channel_factory.c",
+        "src/core/ext/filters/client_channel/client_channel_plugin.c",
+        "src/core/ext/filters/client_channel/connector.c",
+        "src/core/ext/filters/client_channel/http_connect_handshaker.c",
+        "src/core/ext/filters/client_channel/http_proxy.c",
+        "src/core/ext/filters/client_channel/lb_policy.c",
+        "src/core/ext/filters/client_channel/lb_policy_factory.c",
+        "src/core/ext/filters/client_channel/lb_policy_registry.c",
+        "src/core/ext/filters/client_channel/parse_address.c",
+        "src/core/ext/filters/client_channel/proxy_mapper.c",
+        "src/core/ext/filters/client_channel/proxy_mapper_registry.c",
+        "src/core/ext/filters/client_channel/resolver.c",
+        "src/core/ext/filters/client_channel/resolver_factory.c",
+        "src/core/ext/filters/client_channel/resolver_registry.c",
+        "src/core/ext/filters/client_channel/retry_throttle.c",
+        "src/core/ext/filters/client_channel/subchannel.c",
+        "src/core/ext/filters/client_channel/subchannel_index.c",
+        "src/core/ext/filters/client_channel/uri_parser.c",
     ],
     hdrs = [
-        "src/core/ext/client_channel/client_channel.h",
-        "src/core/ext/client_channel/client_channel_factory.h",
-        "src/core/ext/client_channel/connector.h",
-        "src/core/ext/client_channel/http_connect_handshaker.h",
-        "src/core/ext/client_channel/http_proxy.h",
-        "src/core/ext/client_channel/lb_policy.h",
-        "src/core/ext/client_channel/lb_policy_factory.h",
-        "src/core/ext/client_channel/lb_policy_registry.h",
-        "src/core/ext/client_channel/parse_address.h",
-        "src/core/ext/client_channel/proxy_mapper.h",
-        "src/core/ext/client_channel/proxy_mapper_registry.h",
-        "src/core/ext/client_channel/resolver.h",
-        "src/core/ext/client_channel/resolver_factory.h",
-        "src/core/ext/client_channel/resolver_registry.h",
-        "src/core/ext/client_channel/retry_throttle.h",
-        "src/core/ext/client_channel/subchannel.h",
-        "src/core/ext/client_channel/subchannel_index.h",
-        "src/core/ext/client_channel/uri_parser.h",
+        "src/core/ext/filters/client_channel/client_channel.h",
+        "src/core/ext/filters/client_channel/client_channel_factory.h",
+        "src/core/ext/filters/client_channel/connector.h",
+        "src/core/ext/filters/client_channel/http_connect_handshaker.h",
+        "src/core/ext/filters/client_channel/http_proxy.h",
+        "src/core/ext/filters/client_channel/lb_policy.h",
+        "src/core/ext/filters/client_channel/lb_policy_factory.h",
+        "src/core/ext/filters/client_channel/lb_policy_registry.h",
+        "src/core/ext/filters/client_channel/parse_address.h",
+        "src/core/ext/filters/client_channel/proxy_mapper.h",
+        "src/core/ext/filters/client_channel/proxy_mapper_registry.h",
+        "src/core/ext/filters/client_channel/resolver.h",
+        "src/core/ext/filters/client_channel/resolver_factory.h",
+        "src/core/ext/filters/client_channel/resolver_registry.h",
+        "src/core/ext/filters/client_channel/retry_throttle.h",
+        "src/core/ext/filters/client_channel/subchannel.h",
+        "src/core/ext/filters/client_channel/subchannel_index.h",
+        "src/core/ext/filters/client_channel/uri_parser.h",
+    ],
+    language = "c",
+    deps = [
+        "grpc_base",
+    ],
+)
+
+grpc_cc_library(
+    name = "grpc_max_age_filter",
+    srcs = [
+        "src/core/ext/filters/max_age/max_age_filter.c",
+    ],
+    hdrs = [
+        "src/core/ext/filters/max_age/max_age_filter.h",
     ],
     language = "c",
     deps = [
@@ -761,16 +775,16 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_lb_policy_grpclb",
     srcs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.c",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.c",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
     ],
     hdrs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.h",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.h",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
     ],
     external_deps = [
         "nanopb",
@@ -785,16 +799,16 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_lb_policy_grpclb_secure",
     srcs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.c",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
     ],
     hdrs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.h",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.h",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
     ],
     external_deps = [
         "nanopb",
@@ -810,7 +824,7 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_lb_policy_pick_first",
     srcs = [
-        "src/core/ext/lb_policy/pick_first/pick_first.c",
+        "src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c",
     ],
     language = "c",
     deps = [
@@ -822,7 +836,7 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_lb_policy_round_robin",
     srcs = [
-        "src/core/ext/lb_policy/round_robin/round_robin.c",
+        "src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c",
     ],
     language = "c",
     deps = [
@@ -834,12 +848,12 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_load_reporting",
     srcs = [
-        "src/core/ext/load_reporting/load_reporting.c",
-        "src/core/ext/load_reporting/load_reporting_filter.c",
+        "src/core/ext/filters/load_reporting/load_reporting.c",
+        "src/core/ext/filters/load_reporting/load_reporting_filter.c",
     ],
     hdrs = [
-        "src/core/ext/load_reporting/load_reporting.h",
-        "src/core/ext/load_reporting/load_reporting_filter.h",
+        "src/core/ext/filters/load_reporting/load_reporting.h",
+        "src/core/ext/filters/load_reporting/load_reporting_filter.h",
     ],
     language = "c",
     deps = [
@@ -850,7 +864,7 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_resolver_dns_native",
     srcs = [
-        "src/core/ext/resolver/dns/native/dns_resolver.c",
+        "src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c",
     ],
     language = "c",
     deps = [
@@ -862,13 +876,13 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_resolver_dns_ares",
     srcs = [
-        "src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c",
     ],
     hdrs = [
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h",
     ],
     language = "c",
     deps = [
@@ -883,7 +897,7 @@ grpc_cc_library(
 grpc_cc_library(
     name = "grpc_resolver_sockaddr",
     srcs = [
-        "src/core/ext/resolver/sockaddr/sockaddr_resolver.c",
+        "src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c",
     ],
     language = "c",
     deps = [
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e3b2558ad290ee0c0a50f40827244e872a83aafb..332f8a541ce1ab4a1612a410b324d14b71248ceb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -918,7 +918,6 @@ add_library(grpc
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1083,47 +1082,47 @@ add_library(grpc
   src/core/tsi/transport_security.c
   src/core/ext/transport/chttp2/server/chttp2_server.c
   src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c
   src/core/ext/transport/chttp2/client/insecure/channel_create.c
   src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c
-  src/core/ext/lb_policy/grpclb/grpclb.c
-  src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
-  src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   third_party/nanopb/pb_common.c
   third_party/nanopb/pb_decode.c
   third_party/nanopb/pb_encode.c
-  src/core/ext/lb_policy/pick_first/pick_first.c
-  src/core/ext/lb_policy/round_robin/round_robin.c
-  src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
-  src/core/ext/resolver/dns/native/dns_resolver.c
-  src/core/ext/resolver/sockaddr/sockaddr_resolver.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
+  src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
+  src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
   src/core/ext/census/base_resources.c
   src/core/ext/census/context.c
   src/core/ext/census/gen/census.pb.c
@@ -1138,6 +1137,7 @@ add_library(grpc
   src/core/ext/census/resource.c
   src/core/ext/census/trace_context.c
   src/core/ext/census/tracing.c
+  src/core/ext/filters/max_age/max_age_filter.c
   src/core/plugin_registry/grpc_plugin_registry.c
 )
 
@@ -1240,7 +1240,6 @@ add_library(grpc_cronet
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1379,26 +1378,26 @@ add_library(grpc_cronet
   src/core/ext/transport/chttp2/transport/varint.c
   src/core/ext/transport/chttp2/transport/writing.c
   src/core/ext/transport/chttp2/alpn/alpn.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/lib/http/httpcli_security_connector.c
   src/core/lib/security/context/security_context.c
   src/core/lib/security/credentials/composite/composite_credentials.c
@@ -1427,8 +1426,8 @@ add_library(grpc_cronet
   src/core/tsi/ssl_transport_security.c
   src/core/tsi/transport_security.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
   src/core/plugin_registry/grpc_cronet_plugin_registry.c
 )
 
@@ -1549,7 +1548,6 @@ add_library(grpc_test_util
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1810,7 +1808,6 @@ add_library(grpc_unsecure
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1951,42 +1948,42 @@ add_library(grpc_unsecure
   src/core/ext/transport/chttp2/client/insecure/channel_create.c
   src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
-  src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
-  src/core/ext/resolver/dns/native/dns_resolver.c
-  src/core/ext/resolver/sockaddr/sockaddr_resolver.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
-  src/core/ext/lb_policy/grpclb/grpclb.c
-  src/core/ext/lb_policy/grpclb/grpclb_channel.c
-  src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
+  src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   third_party/nanopb/pb_common.c
   third_party/nanopb/pb_decode.c
   third_party/nanopb/pb_encode.c
-  src/core/ext/lb_policy/pick_first/pick_first.c
-  src/core/ext/lb_policy/round_robin/round_robin.c
+  src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
+  src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
   src/core/ext/census/base_resources.c
   src/core/ext/census/context.c
   src/core/ext/census/gen/census.pb.c
@@ -2001,6 +1998,7 @@ add_library(grpc_unsecure
   src/core/ext/census/resource.c
   src/core/ext/census/trace_context.c
   src/core/ext/census/tracing.c
+  src/core/ext/filters/max_age/max_age_filter.c
   src/core/plugin_registry/grpc_unsecure_plugin_registry.c
 )
 
@@ -2226,7 +2224,6 @@ add_library(grpc++
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -2557,7 +2554,6 @@ add_library(grpc++_cronet
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -2699,26 +2695,26 @@ add_library(grpc++_cronet
   src/core/ext/transport/chttp2/transport/varint.c
   src/core/ext/transport/chttp2/transport/writing.c
   src/core/ext/transport/chttp2/alpn/alpn.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c
   src/core/ext/transport/chttp2/server/chttp2_server.c
@@ -3256,7 +3252,6 @@ add_library(grpc++_unsecure
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
diff --git a/Makefile b/Makefile
index 7499dbbf50d1844b7f9a46b34087280f3a871bce..8bad909fe94a7cbd6155ea9614f0aa18d95b4f7e 100644
--- a/Makefile
+++ b/Makefile
@@ -2820,7 +2820,6 @@ LIBGRPC_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -2985,47 +2984,47 @@ LIBGRPC_SRC = \
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -3040,6 +3039,7 @@ LIBGRPC_SRC = \
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -3140,7 +3140,6 @@ LIBGRPC_CRONET_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3279,26 +3278,26 @@ LIBGRPC_CRONET_SRC = \
     src/core/ext/transport/chttp2/transport/varint.c \
     src/core/ext/transport/chttp2/transport/writing.c \
     src/core/ext/transport/chttp2/alpn/alpn.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/lib/http/httpcli_security_connector.c \
     src/core/lib/security/context/security_context.c \
     src/core/lib/security/credentials/composite/composite_credentials.c \
@@ -3327,8 +3326,8 @@ LIBGRPC_CRONET_SRC = \
     src/core/tsi/ssl_transport_security.c \
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/plugin_registry/grpc_cronet_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -3448,7 +3447,6 @@ LIBGRPC_TEST_UTIL_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3681,7 +3679,6 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3822,42 +3819,42 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -3872,6 +3869,7 @@ LIBGRPC_UNSECURE_SRC = \
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_unsecure_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -4074,7 +4072,6 @@ LIBGRPC++_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -4413,7 +4410,6 @@ LIBGRPC++_CRONET_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -4555,26 +4551,26 @@ LIBGRPC++_CRONET_SRC = \
     src/core/ext/transport/chttp2/transport/varint.c \
     src/core/ext/transport/chttp2/transport/writing.c \
     src/core/ext/transport/chttp2/alpn/alpn.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
@@ -5104,7 +5100,6 @@ LIBGRPC++_UNSECURE_SRC = \
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -19176,7 +19171,7 @@ ifneq ($(OPENSSL_DEP),)
 # This is to ensure the embedded OpenSSL is built beforehand, properly
 # installing headers to their final destination on the drive. We need this
 # otherwise parallel compilation will fail if a source is compiled first.
-src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c: $(OPENSSL_DEP)
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c: $(OPENSSL_DEP)
 src/core/ext/transport/chttp2/client/secure/secure_channel_create.c: $(OPENSSL_DEP)
 src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c: $(OPENSSL_DEP)
 src/core/ext/transport/cronet/client/secure/cronet_channel_create.c: $(OPENSSL_DEP)
diff --git a/binding.gyp b/binding.gyp
index cd2de83bcb4aaa5c9dcee8890b4cbfcecd04fab9..f3c7252d96dc559e14eba7161175752a04c8430f 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -626,7 +626,6 @@
         'src/core/lib/channel/handshaker_registry.c',
         'src/core/lib/channel/http_client_filter.c',
         'src/core/lib/channel/http_server_filter.c',
-        'src/core/lib/channel/max_age_filter.c',
         'src/core/lib/channel/message_size_filter.c',
         'src/core/lib/compression/compression.c',
         'src/core/lib/compression/message_compress.c',
@@ -791,47 +790,47 @@
         'src/core/tsi/transport_security.c',
         'src/core/ext/transport/chttp2/server/chttp2_server.c',
         'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-        'src/core/ext/client_channel/channel_connectivity.c',
-        'src/core/ext/client_channel/client_channel.c',
-        'src/core/ext/client_channel/client_channel_factory.c',
-        'src/core/ext/client_channel/client_channel_plugin.c',
-        'src/core/ext/client_channel/connector.c',
-        'src/core/ext/client_channel/http_connect_handshaker.c',
-        'src/core/ext/client_channel/http_proxy.c',
-        'src/core/ext/client_channel/lb_policy.c',
-        'src/core/ext/client_channel/lb_policy_factory.c',
-        'src/core/ext/client_channel/lb_policy_registry.c',
-        'src/core/ext/client_channel/parse_address.c',
-        'src/core/ext/client_channel/proxy_mapper.c',
-        'src/core/ext/client_channel/proxy_mapper_registry.c',
-        'src/core/ext/client_channel/resolver.c',
-        'src/core/ext/client_channel/resolver_factory.c',
-        'src/core/ext/client_channel/resolver_registry.c',
-        'src/core/ext/client_channel/retry_throttle.c',
-        'src/core/ext/client_channel/subchannel.c',
-        'src/core/ext/client_channel/subchannel_index.c',
-        'src/core/ext/client_channel/uri_parser.c',
+        'src/core/ext/filters/client_channel/channel_connectivity.c',
+        'src/core/ext/filters/client_channel/client_channel.c',
+        'src/core/ext/filters/client_channel/client_channel_factory.c',
+        'src/core/ext/filters/client_channel/client_channel_plugin.c',
+        'src/core/ext/filters/client_channel/connector.c',
+        'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+        'src/core/ext/filters/client_channel/http_proxy.c',
+        'src/core/ext/filters/client_channel/lb_policy.c',
+        'src/core/ext/filters/client_channel/lb_policy_factory.c',
+        'src/core/ext/filters/client_channel/lb_policy_registry.c',
+        'src/core/ext/filters/client_channel/parse_address.c',
+        'src/core/ext/filters/client_channel/proxy_mapper.c',
+        'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+        'src/core/ext/filters/client_channel/resolver.c',
+        'src/core/ext/filters/client_channel/resolver_factory.c',
+        'src/core/ext/filters/client_channel/resolver_registry.c',
+        'src/core/ext/filters/client_channel/retry_throttle.c',
+        'src/core/ext/filters/client_channel/subchannel.c',
+        'src/core/ext/filters/client_channel/subchannel_index.c',
+        'src/core/ext/filters/client_channel/uri_parser.c',
         'src/core/ext/transport/chttp2/client/chttp2_connector.c',
         'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
         'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
         'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
         'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-        'src/core/ext/lb_policy/grpclb/grpclb.c',
-        'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-        'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-        'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
         'third_party/nanopb/pb_common.c',
         'third_party/nanopb/pb_decode.c',
         'third_party/nanopb/pb_encode.c',
-        'src/core/ext/lb_policy/pick_first/pick_first.c',
-        'src/core/ext/lb_policy/round_robin/round_robin.c',
-        'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-        'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-        'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-        'src/core/ext/resolver/dns/native/dns_resolver.c',
-        'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-        'src/core/ext/load_reporting/load_reporting.c',
-        'src/core/ext/load_reporting/load_reporting_filter.c',
+        'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+        'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+        'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+        'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+        'src/core/ext/filters/load_reporting/load_reporting.c',
+        'src/core/ext/filters/load_reporting/load_reporting_filter.c',
         'src/core/ext/census/base_resources.c',
         'src/core/ext/census/context.c',
         'src/core/ext/census/gen/census.pb.c',
@@ -846,6 +845,7 @@
         'src/core/ext/census/resource.c',
         'src/core/ext/census/trace_context.c',
         'src/core/ext/census/tracing.c',
+        'src/core/ext/filters/max_age/max_age_filter.c',
         'src/core/plugin_registry/grpc_plugin_registry.c',
       ],
       "conditions": [
diff --git a/build.yaml b/build.yaml
index f9e948c9e4dbee0794428868bee448d14a2453b3..c294fc9185cb2a1d5fc16a5a5561b2befb6adbaa 100644
--- a/build.yaml
+++ b/build.yaml
@@ -185,7 +185,6 @@ filegroups:
   - src/core/lib/channel/handshaker_registry.h
   - src/core/lib/channel/http_client_filter.h
   - src/core/lib/channel/http_server_filter.h
-  - src/core/lib/channel/max_age_filter.h
   - src/core/lib/channel/message_size_filter.h
   - src/core/lib/compression/algorithm_metadata.h
   - src/core/lib/compression/message_compress.h
@@ -296,7 +295,6 @@ filegroups:
   - src/core/lib/channel/handshaker_registry.c
   - src/core/lib/channel/http_client_filter.c
   - src/core/lib/channel/http_server_filter.c
-  - src/core/lib/channel/max_age_filter.c
   - src/core/lib/channel/message_size_filter.c
   - src/core/lib/compression/compression.c
   - src/core/lib/compression/message_compress.c
@@ -416,45 +414,45 @@ filegroups:
   - grpc_codegen
 - name: grpc_client_channel
   headers:
-  - src/core/ext/client_channel/client_channel.h
-  - src/core/ext/client_channel/client_channel_factory.h
-  - src/core/ext/client_channel/connector.h
-  - src/core/ext/client_channel/http_connect_handshaker.h
-  - src/core/ext/client_channel/http_proxy.h
-  - src/core/ext/client_channel/lb_policy.h
-  - src/core/ext/client_channel/lb_policy_factory.h
-  - src/core/ext/client_channel/lb_policy_registry.h
-  - src/core/ext/client_channel/parse_address.h
-  - src/core/ext/client_channel/proxy_mapper.h
-  - src/core/ext/client_channel/proxy_mapper_registry.h
-  - src/core/ext/client_channel/resolver.h
-  - src/core/ext/client_channel/resolver_factory.h
-  - src/core/ext/client_channel/resolver_registry.h
-  - src/core/ext/client_channel/retry_throttle.h
-  - src/core/ext/client_channel/subchannel.h
-  - src/core/ext/client_channel/subchannel_index.h
-  - src/core/ext/client_channel/uri_parser.h
-  src:
-  - src/core/ext/client_channel/channel_connectivity.c
-  - src/core/ext/client_channel/client_channel.c
-  - src/core/ext/client_channel/client_channel_factory.c
-  - src/core/ext/client_channel/client_channel_plugin.c
-  - src/core/ext/client_channel/connector.c
-  - src/core/ext/client_channel/http_connect_handshaker.c
-  - src/core/ext/client_channel/http_proxy.c
-  - src/core/ext/client_channel/lb_policy.c
-  - src/core/ext/client_channel/lb_policy_factory.c
-  - src/core/ext/client_channel/lb_policy_registry.c
-  - src/core/ext/client_channel/parse_address.c
-  - src/core/ext/client_channel/proxy_mapper.c
-  - src/core/ext/client_channel/proxy_mapper_registry.c
-  - src/core/ext/client_channel/resolver.c
-  - src/core/ext/client_channel/resolver_factory.c
-  - src/core/ext/client_channel/resolver_registry.c
-  - src/core/ext/client_channel/retry_throttle.c
-  - src/core/ext/client_channel/subchannel.c
-  - src/core/ext/client_channel/subchannel_index.c
-  - src/core/ext/client_channel/uri_parser.c
+  - src/core/ext/filters/client_channel/client_channel.h
+  - src/core/ext/filters/client_channel/client_channel_factory.h
+  - src/core/ext/filters/client_channel/connector.h
+  - src/core/ext/filters/client_channel/http_connect_handshaker.h
+  - src/core/ext/filters/client_channel/http_proxy.h
+  - src/core/ext/filters/client_channel/lb_policy.h
+  - src/core/ext/filters/client_channel/lb_policy_factory.h
+  - src/core/ext/filters/client_channel/lb_policy_registry.h
+  - src/core/ext/filters/client_channel/parse_address.h
+  - src/core/ext/filters/client_channel/proxy_mapper.h
+  - src/core/ext/filters/client_channel/proxy_mapper_registry.h
+  - src/core/ext/filters/client_channel/resolver.h
+  - src/core/ext/filters/client_channel/resolver_factory.h
+  - src/core/ext/filters/client_channel/resolver_registry.h
+  - src/core/ext/filters/client_channel/retry_throttle.h
+  - src/core/ext/filters/client_channel/subchannel.h
+  - src/core/ext/filters/client_channel/subchannel_index.h
+  - src/core/ext/filters/client_channel/uri_parser.h
+  src:
+  - src/core/ext/filters/client_channel/channel_connectivity.c
+  - src/core/ext/filters/client_channel/client_channel.c
+  - src/core/ext/filters/client_channel/client_channel_factory.c
+  - src/core/ext/filters/client_channel/client_channel_plugin.c
+  - src/core/ext/filters/client_channel/connector.c
+  - src/core/ext/filters/client_channel/http_connect_handshaker.c
+  - src/core/ext/filters/client_channel/http_proxy.c
+  - src/core/ext/filters/client_channel/lb_policy.c
+  - src/core/ext/filters/client_channel/lb_policy_factory.c
+  - src/core/ext/filters/client_channel/lb_policy_registry.c
+  - src/core/ext/filters/client_channel/parse_address.c
+  - src/core/ext/filters/client_channel/proxy_mapper.c
+  - src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  - src/core/ext/filters/client_channel/resolver.c
+  - src/core/ext/filters/client_channel/resolver_factory.c
+  - src/core/ext/filters/client_channel/resolver_registry.c
+  - src/core/ext/filters/client_channel/retry_throttle.c
+  - src/core/ext/filters/client_channel/subchannel.c
+  - src/core/ext/filters/client_channel/subchannel_index.c
+  - src/core/ext/filters/client_channel/uri_parser.c
   plugin: grpc_client_channel
   uses:
   - grpc_base
@@ -472,15 +470,15 @@ filegroups:
   - gpr_codegen
 - name: grpc_lb_policy_grpclb
   headers:
-  - src/core/ext/lb_policy/grpclb/grpclb.h
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.h
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.h
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
-  src:
-  - src/core/ext/lb_policy/grpclb/grpclb.c
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.c
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
+  src:
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   plugin: grpc_lb_policy_grpclb
   uses:
   - grpc_base
@@ -488,15 +486,15 @@ filegroups:
   - nanopb
 - name: grpc_lb_policy_grpclb_secure
   headers:
-  - src/core/ext/lb_policy/grpclb/grpclb.h
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.h
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.h
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
-  src:
-  - src/core/ext/lb_policy/grpclb/grpclb.c
-  - src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
+  src:
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   plugin: grpc_lb_policy_grpclb
   uses:
   - grpc_base
@@ -505,50 +503,58 @@ filegroups:
   - nanopb
 - name: grpc_lb_policy_pick_first
   src:
-  - src/core/ext/lb_policy/pick_first/pick_first.c
+  - src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
   plugin: grpc_lb_policy_pick_first
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_lb_policy_round_robin
   src:
-  - src/core/ext/lb_policy/round_robin/round_robin.c
+  - src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
   plugin: grpc_lb_policy_round_robin
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_load_reporting
   headers:
-  - src/core/ext/load_reporting/load_reporting.h
-  - src/core/ext/load_reporting/load_reporting_filter.h
+  - src/core/ext/filters/load_reporting/load_reporting.h
+  - src/core/ext/filters/load_reporting/load_reporting_filter.h
   src:
-  - src/core/ext/load_reporting/load_reporting.c
-  - src/core/ext/load_reporting/load_reporting_filter.c
+  - src/core/ext/filters/load_reporting/load_reporting.c
+  - src/core/ext/filters/load_reporting/load_reporting_filter.c
   plugin: grpc_load_reporting_plugin
   uses:
   - grpc_base
+- name: grpc_max_age_filter
+  headers:
+  - src/core/ext/filters/max_age/max_age_filter.h
+  src:
+  - src/core/ext/filters/max_age/max_age_filter.c
+  plugin: grpc_max_age_filter
+  uses:
+  - grpc_base
 - name: grpc_resolver_dns_ares
   headers:
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
   src:
-  - src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
   plugin: grpc_resolver_dns_ares
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_resolver_dns_native
   src:
-  - src/core/ext/resolver/dns/native/dns_resolver.c
+  - src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
   plugin: grpc_resolver_dns_native
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_resolver_sockaddr
   src:
-  - src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+  - src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
   plugin: grpc_resolver_sockaddr
   uses:
   - grpc_base
@@ -990,6 +996,7 @@ libs:
   - grpc_load_reporting
   - grpc_secure
   - census
+  - grpc_max_age_filter
   generate_plugin_registry: true
   secure: true
   vs_packages:
@@ -1086,6 +1093,7 @@ libs:
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
   - census
+  - grpc_max_age_filter
   generate_plugin_registry: true
   secure: false
   vs_project_guid: '{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}'
diff --git a/config.m4 b/config.m4
index 6e6a65a3ded581be16174dcba109997d9250ba12..284678103134fbc0d42abad95edf6924ab1e7e0b 100644
--- a/config.m4
+++ b/config.m4
@@ -94,7 +94,6 @@ if test "$PHP_GRPC" != "no"; then
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -259,47 +258,47 @@ if test "$PHP_GRPC" != "no"; then
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -314,6 +313,7 @@ if test "$PHP_GRPC" != "no"; then
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_plugin_registry.c \
     src/boringssl/err_data.c \
     third_party/boringssl/crypto/aes/aes.c \
@@ -629,15 +629,16 @@ if test "$PHP_GRPC" != "no"; then
   PHP_ADD_BUILD_DIR($ext_builddir/src/boringssl)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/census)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/census/gen)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/client_channel)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/grpclb)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/pick_first)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/round_robin)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/load_reporting)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/c_ares)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/native)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/sockaddr)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/pick_first)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/round_robin)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/dns/c_ares)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/dns/native)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/sockaddr)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/load_reporting)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/max_age)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/alpn)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/client)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/client/insecure)
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index d750a5b9841c8d018ff147c32d17dfe7f3f200af..83c19afc243d76bafdda4a91ddd1b64499b59673 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -267,7 +267,6 @@ Pod::Spec.new do |s|
                       'src/core/lib/channel/handshaker_registry.h',
                       'src/core/lib/channel/http_client_filter.h',
                       'src/core/lib/channel/http_server_filter.h',
-                      'src/core/lib/channel/max_age_filter.h',
                       'src/core/lib/channel/message_size_filter.h',
                       'src/core/lib/compression/algorithm_metadata.h',
                       'src/core/lib/compression/message_compress.h',
@@ -410,37 +409,37 @@ Pod::Spec.new do |s|
                       'src/core/tsi/transport_security.h',
                       'src/core/tsi/transport_security_interface.h',
                       'src/core/ext/transport/chttp2/server/chttp2_server.h',
-                      'src/core/ext/client_channel/client_channel.h',
-                      'src/core/ext/client_channel/client_channel_factory.h',
-                      'src/core/ext/client_channel/connector.h',
-                      'src/core/ext/client_channel/http_connect_handshaker.h',
-                      'src/core/ext/client_channel/http_proxy.h',
-                      'src/core/ext/client_channel/lb_policy.h',
-                      'src/core/ext/client_channel/lb_policy_factory.h',
-                      'src/core/ext/client_channel/lb_policy_registry.h',
-                      'src/core/ext/client_channel/parse_address.h',
-                      'src/core/ext/client_channel/proxy_mapper.h',
-                      'src/core/ext/client_channel/proxy_mapper_registry.h',
-                      'src/core/ext/client_channel/resolver.h',
-                      'src/core/ext/client_channel/resolver_factory.h',
-                      'src/core/ext/client_channel/resolver_registry.h',
-                      'src/core/ext/client_channel/retry_throttle.h',
-                      'src/core/ext/client_channel/subchannel.h',
-                      'src/core/ext/client_channel/subchannel_index.h',
-                      'src/core/ext/client_channel/uri_parser.h',
+                      'src/core/ext/filters/client_channel/client_channel.h',
+                      'src/core/ext/filters/client_channel/client_channel_factory.h',
+                      'src/core/ext/filters/client_channel/connector.h',
+                      'src/core/ext/filters/client_channel/http_connect_handshaker.h',
+                      'src/core/ext/filters/client_channel/http_proxy.h',
+                      'src/core/ext/filters/client_channel/lb_policy.h',
+                      'src/core/ext/filters/client_channel/lb_policy_factory.h',
+                      'src/core/ext/filters/client_channel/lb_policy_registry.h',
+                      'src/core/ext/filters/client_channel/parse_address.h',
+                      'src/core/ext/filters/client_channel/proxy_mapper.h',
+                      'src/core/ext/filters/client_channel/proxy_mapper_registry.h',
+                      'src/core/ext/filters/client_channel/resolver.h',
+                      'src/core/ext/filters/client_channel/resolver_factory.h',
+                      'src/core/ext/filters/client_channel/resolver_registry.h',
+                      'src/core/ext/filters/client_channel/retry_throttle.h',
+                      'src/core/ext/filters/client_channel/subchannel.h',
+                      'src/core/ext/filters/client_channel/subchannel_index.h',
+                      'src/core/ext/filters/client_channel/uri_parser.h',
                       'src/core/ext/transport/chttp2/client/chttp2_connector.h',
-                      'src/core/ext/lb_policy/grpclb/grpclb.h',
-                      'src/core/ext/lb_policy/grpclb/grpclb_channel.h',
-                      'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
-                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
                       'third_party/nanopb/pb.h',
                       'third_party/nanopb/pb_common.h',
                       'third_party/nanopb/pb_decode.h',
                       'third_party/nanopb/pb_encode.h',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h',
-                      'src/core/ext/load_reporting/load_reporting.h',
-                      'src/core/ext/load_reporting/load_reporting_filter.h',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h',
+                      'src/core/ext/filters/load_reporting/load_reporting.h',
+                      'src/core/ext/filters/load_reporting/load_reporting_filter.h',
                       'src/core/ext/census/aggregation.h',
                       'src/core/ext/census/base_resources.h',
                       'src/core/ext/census/census_interface.h',
@@ -457,6 +456,7 @@ Pod::Spec.new do |s|
                       'src/core/ext/census/trace_status.h',
                       'src/core/ext/census/trace_string.h',
                       'src/core/ext/census/tracing.h',
+                      'src/core/ext/filters/max_age/max_age_filter.h',
                       'src/core/lib/surface/init.c',
                       'src/core/lib/channel/channel_args.c',
                       'src/core/lib/channel/channel_stack.c',
@@ -469,7 +469,6 @@ Pod::Spec.new do |s|
                       'src/core/lib/channel/handshaker_registry.c',
                       'src/core/lib/channel/http_client_filter.c',
                       'src/core/lib/channel/http_server_filter.c',
-                      'src/core/lib/channel/max_age_filter.c',
                       'src/core/lib/channel/message_size_filter.c',
                       'src/core/lib/compression/compression.c',
                       'src/core/lib/compression/message_compress.c',
@@ -634,47 +633,47 @@ Pod::Spec.new do |s|
                       'src/core/tsi/transport_security.c',
                       'src/core/ext/transport/chttp2/server/chttp2_server.c',
                       'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-                      'src/core/ext/client_channel/channel_connectivity.c',
-                      'src/core/ext/client_channel/client_channel.c',
-                      'src/core/ext/client_channel/client_channel_factory.c',
-                      'src/core/ext/client_channel/client_channel_plugin.c',
-                      'src/core/ext/client_channel/connector.c',
-                      'src/core/ext/client_channel/http_connect_handshaker.c',
-                      'src/core/ext/client_channel/http_proxy.c',
-                      'src/core/ext/client_channel/lb_policy.c',
-                      'src/core/ext/client_channel/lb_policy_factory.c',
-                      'src/core/ext/client_channel/lb_policy_registry.c',
-                      'src/core/ext/client_channel/parse_address.c',
-                      'src/core/ext/client_channel/proxy_mapper.c',
-                      'src/core/ext/client_channel/proxy_mapper_registry.c',
-                      'src/core/ext/client_channel/resolver.c',
-                      'src/core/ext/client_channel/resolver_factory.c',
-                      'src/core/ext/client_channel/resolver_registry.c',
-                      'src/core/ext/client_channel/retry_throttle.c',
-                      'src/core/ext/client_channel/subchannel.c',
-                      'src/core/ext/client_channel/subchannel_index.c',
-                      'src/core/ext/client_channel/uri_parser.c',
+                      'src/core/ext/filters/client_channel/channel_connectivity.c',
+                      'src/core/ext/filters/client_channel/client_channel.c',
+                      'src/core/ext/filters/client_channel/client_channel_factory.c',
+                      'src/core/ext/filters/client_channel/client_channel_plugin.c',
+                      'src/core/ext/filters/client_channel/connector.c',
+                      'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+                      'src/core/ext/filters/client_channel/http_proxy.c',
+                      'src/core/ext/filters/client_channel/lb_policy.c',
+                      'src/core/ext/filters/client_channel/lb_policy_factory.c',
+                      'src/core/ext/filters/client_channel/lb_policy_registry.c',
+                      'src/core/ext/filters/client_channel/parse_address.c',
+                      'src/core/ext/filters/client_channel/proxy_mapper.c',
+                      'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+                      'src/core/ext/filters/client_channel/resolver.c',
+                      'src/core/ext/filters/client_channel/resolver_factory.c',
+                      'src/core/ext/filters/client_channel/resolver_registry.c',
+                      'src/core/ext/filters/client_channel/retry_throttle.c',
+                      'src/core/ext/filters/client_channel/subchannel.c',
+                      'src/core/ext/filters/client_channel/subchannel_index.c',
+                      'src/core/ext/filters/client_channel/uri_parser.c',
                       'src/core/ext/transport/chttp2/client/chttp2_connector.c',
                       'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
                       'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
                       'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
                       'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-                      'src/core/ext/lb_policy/grpclb/grpclb.c',
-                      'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-                      'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
                       'third_party/nanopb/pb_common.c',
                       'third_party/nanopb/pb_decode.c',
                       'third_party/nanopb/pb_encode.c',
-                      'src/core/ext/lb_policy/pick_first/pick_first.c',
-                      'src/core/ext/lb_policy/round_robin/round_robin.c',
-                      'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-                      'src/core/ext/resolver/dns/native/dns_resolver.c',
-                      'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-                      'src/core/ext/load_reporting/load_reporting.c',
-                      'src/core/ext/load_reporting/load_reporting_filter.c',
+                      'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+                      'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+                      'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+                      'src/core/ext/filters/load_reporting/load_reporting.c',
+                      'src/core/ext/filters/load_reporting/load_reporting_filter.c',
                       'src/core/ext/census/base_resources.c',
                       'src/core/ext/census/context.c',
                       'src/core/ext/census/gen/census.pb.c',
@@ -689,6 +688,7 @@ Pod::Spec.new do |s|
                       'src/core/ext/census/resource.c',
                       'src/core/ext/census/trace_context.c',
                       'src/core/ext/census/tracing.c',
+                      'src/core/ext/filters/max_age/max_age_filter.c',
                       'src/core/plugin_registry/grpc_plugin_registry.c'
 
     ss.private_header_files = 'src/core/lib/profiling/timers.h',
@@ -717,7 +717,6 @@ Pod::Spec.new do |s|
                               'src/core/lib/channel/handshaker_registry.h',
                               'src/core/lib/channel/http_client_filter.h',
                               'src/core/lib/channel/http_server_filter.h',
-                              'src/core/lib/channel/max_age_filter.h',
                               'src/core/lib/channel/message_size_filter.h',
                               'src/core/lib/compression/algorithm_metadata.h',
                               'src/core/lib/compression/message_compress.h',
@@ -860,37 +859,37 @@ Pod::Spec.new do |s|
                               'src/core/tsi/transport_security.h',
                               'src/core/tsi/transport_security_interface.h',
                               'src/core/ext/transport/chttp2/server/chttp2_server.h',
-                              'src/core/ext/client_channel/client_channel.h',
-                              'src/core/ext/client_channel/client_channel_factory.h',
-                              'src/core/ext/client_channel/connector.h',
-                              'src/core/ext/client_channel/http_connect_handshaker.h',
-                              'src/core/ext/client_channel/http_proxy.h',
-                              'src/core/ext/client_channel/lb_policy.h',
-                              'src/core/ext/client_channel/lb_policy_factory.h',
-                              'src/core/ext/client_channel/lb_policy_registry.h',
-                              'src/core/ext/client_channel/parse_address.h',
-                              'src/core/ext/client_channel/proxy_mapper.h',
-                              'src/core/ext/client_channel/proxy_mapper_registry.h',
-                              'src/core/ext/client_channel/resolver.h',
-                              'src/core/ext/client_channel/resolver_factory.h',
-                              'src/core/ext/client_channel/resolver_registry.h',
-                              'src/core/ext/client_channel/retry_throttle.h',
-                              'src/core/ext/client_channel/subchannel.h',
-                              'src/core/ext/client_channel/subchannel_index.h',
-                              'src/core/ext/client_channel/uri_parser.h',
+                              'src/core/ext/filters/client_channel/client_channel.h',
+                              'src/core/ext/filters/client_channel/client_channel_factory.h',
+                              'src/core/ext/filters/client_channel/connector.h',
+                              'src/core/ext/filters/client_channel/http_connect_handshaker.h',
+                              'src/core/ext/filters/client_channel/http_proxy.h',
+                              'src/core/ext/filters/client_channel/lb_policy.h',
+                              'src/core/ext/filters/client_channel/lb_policy_factory.h',
+                              'src/core/ext/filters/client_channel/lb_policy_registry.h',
+                              'src/core/ext/filters/client_channel/parse_address.h',
+                              'src/core/ext/filters/client_channel/proxy_mapper.h',
+                              'src/core/ext/filters/client_channel/proxy_mapper_registry.h',
+                              'src/core/ext/filters/client_channel/resolver.h',
+                              'src/core/ext/filters/client_channel/resolver_factory.h',
+                              'src/core/ext/filters/client_channel/resolver_registry.h',
+                              'src/core/ext/filters/client_channel/retry_throttle.h',
+                              'src/core/ext/filters/client_channel/subchannel.h',
+                              'src/core/ext/filters/client_channel/subchannel_index.h',
+                              'src/core/ext/filters/client_channel/uri_parser.h',
                               'src/core/ext/transport/chttp2/client/chttp2_connector.h',
-                              'src/core/ext/lb_policy/grpclb/grpclb.h',
-                              'src/core/ext/lb_policy/grpclb/grpclb_channel.h',
-                              'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
-                              'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
                               'third_party/nanopb/pb.h',
                               'third_party/nanopb/pb_common.h',
                               'third_party/nanopb/pb_decode.h',
                               'third_party/nanopb/pb_encode.h',
-                              'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h',
-                              'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h',
-                              'src/core/ext/load_reporting/load_reporting.h',
-                              'src/core/ext/load_reporting/load_reporting_filter.h',
+                              'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h',
+                              'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h',
+                              'src/core/ext/filters/load_reporting/load_reporting.h',
+                              'src/core/ext/filters/load_reporting/load_reporting_filter.h',
                               'src/core/ext/census/aggregation.h',
                               'src/core/ext/census/base_resources.h',
                               'src/core/ext/census/census_interface.h',
@@ -906,7 +905,8 @@ Pod::Spec.new do |s|
                               'src/core/ext/census/trace_propagation.h',
                               'src/core/ext/census/trace_status.h',
                               'src/core/ext/census/trace_string.h',
-                              'src/core/ext/census/tracing.h'
+                              'src/core/ext/census/tracing.h',
+                              'src/core/ext/filters/max_age/max_age_filter.h'
   end
 
   s.subspec 'Cronet-Interface' do |ss|
diff --git a/grpc.gemspec b/grpc.gemspec
index 42d4298c9b62c06f5e46ada434b1c9634f7cab17..a3a5870761a229a5603d7e9c3d99ef799e1c312b 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -183,7 +183,6 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/channel/handshaker_registry.h )
   s.files += %w( src/core/lib/channel/http_client_filter.h )
   s.files += %w( src/core/lib/channel/http_server_filter.h )
-  s.files += %w( src/core/lib/channel/max_age_filter.h )
   s.files += %w( src/core/lib/channel/message_size_filter.h )
   s.files += %w( src/core/lib/compression/algorithm_metadata.h )
   s.files += %w( src/core/lib/compression/message_compress.h )
@@ -326,37 +325,37 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/tsi/transport_security.h )
   s.files += %w( src/core/tsi/transport_security_interface.h )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.h )
-  s.files += %w( src/core/ext/client_channel/client_channel.h )
-  s.files += %w( src/core/ext/client_channel/client_channel_factory.h )
-  s.files += %w( src/core/ext/client_channel/connector.h )
-  s.files += %w( src/core/ext/client_channel/http_connect_handshaker.h )
-  s.files += %w( src/core/ext/client_channel/http_proxy.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy_factory.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy_registry.h )
-  s.files += %w( src/core/ext/client_channel/parse_address.h )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper.h )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.h )
-  s.files += %w( src/core/ext/client_channel/resolver.h )
-  s.files += %w( src/core/ext/client_channel/resolver_factory.h )
-  s.files += %w( src/core/ext/client_channel/resolver_registry.h )
-  s.files += %w( src/core/ext/client_channel/retry_throttle.h )
-  s.files += %w( src/core/ext/client_channel/subchannel.h )
-  s.files += %w( src/core/ext/client_channel/subchannel_index.h )
-  s.files += %w( src/core/ext/client_channel/uri_parser.h )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel.h )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/connector.h )
+  s.files += %w( src/core/ext/filters/client_channel/http_connect_handshaker.h )
+  s.files += %w( src/core/ext/filters/client_channel/http_proxy.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/parse_address.h )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper.h )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/retry_throttle.h )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel.h )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel_index.h )
+  s.files += %w( src/core/ext/filters/client_channel/uri_parser.h )
   s.files += %w( src/core/ext/transport/chttp2/client/chttp2_connector.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb_channel.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h )
   s.files += %w( third_party/nanopb/pb.h )
   s.files += %w( third_party/nanopb/pb_common.h )
   s.files += %w( third_party/nanopb/pb_decode.h )
   s.files += %w( third_party/nanopb/pb_encode.h )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h )
-  s.files += %w( src/core/ext/load_reporting/load_reporting.h )
-  s.files += %w( src/core/ext/load_reporting/load_reporting_filter.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting.h )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting_filter.h )
   s.files += %w( src/core/ext/census/aggregation.h )
   s.files += %w( src/core/ext/census/base_resources.h )
   s.files += %w( src/core/ext/census/census_interface.h )
@@ -373,6 +372,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/census/trace_status.h )
   s.files += %w( src/core/ext/census/trace_string.h )
   s.files += %w( src/core/ext/census/tracing.h )
+  s.files += %w( src/core/ext/filters/max_age/max_age_filter.h )
   s.files += %w( src/core/lib/surface/init.c )
   s.files += %w( src/core/lib/channel/channel_args.c )
   s.files += %w( src/core/lib/channel/channel_stack.c )
@@ -385,7 +385,6 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/lib/channel/handshaker_registry.c )
   s.files += %w( src/core/lib/channel/http_client_filter.c )
   s.files += %w( src/core/lib/channel/http_server_filter.c )
-  s.files += %w( src/core/lib/channel/max_age_filter.c )
   s.files += %w( src/core/lib/channel/message_size_filter.c )
   s.files += %w( src/core/lib/compression/compression.c )
   s.files += %w( src/core/lib/compression/message_compress.c )
@@ -550,47 +549,47 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/tsi/transport_security.c )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.c )
   s.files += %w( src/core/ext/transport/chttp2/client/secure/secure_channel_create.c )
-  s.files += %w( src/core/ext/client_channel/channel_connectivity.c )
-  s.files += %w( src/core/ext/client_channel/client_channel.c )
-  s.files += %w( src/core/ext/client_channel/client_channel_factory.c )
-  s.files += %w( src/core/ext/client_channel/client_channel_plugin.c )
-  s.files += %w( src/core/ext/client_channel/connector.c )
-  s.files += %w( src/core/ext/client_channel/http_connect_handshaker.c )
-  s.files += %w( src/core/ext/client_channel/http_proxy.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy_factory.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy_registry.c )
-  s.files += %w( src/core/ext/client_channel/parse_address.c )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper.c )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.c )
-  s.files += %w( src/core/ext/client_channel/resolver.c )
-  s.files += %w( src/core/ext/client_channel/resolver_factory.c )
-  s.files += %w( src/core/ext/client_channel/resolver_registry.c )
-  s.files += %w( src/core/ext/client_channel/retry_throttle.c )
-  s.files += %w( src/core/ext/client_channel/subchannel.c )
-  s.files += %w( src/core/ext/client_channel/subchannel_index.c )
-  s.files += %w( src/core/ext/client_channel/uri_parser.c )
+  s.files += %w( src/core/ext/filters/client_channel/channel_connectivity.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_plugin.c )
+  s.files += %w( src/core/ext/filters/client_channel/connector.c )
+  s.files += %w( src/core/ext/filters/client_channel/http_connect_handshaker.c )
+  s.files += %w( src/core/ext/filters/client_channel/http_proxy.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/parse_address.c )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper.c )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/retry_throttle.c )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel.c )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel_index.c )
+  s.files += %w( src/core/ext/filters/client_channel/uri_parser.c )
   s.files += %w( src/core/ext/transport/chttp2/client/chttp2_connector.c )
   s.files += %w( src/core/ext/transport/chttp2/server/insecure/server_chttp2.c )
   s.files += %w( src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c )
   s.files += %w( src/core/ext/transport/chttp2/client/insecure/channel_create.c )
   s.files += %w( src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c )
   s.files += %w( third_party/nanopb/pb_common.c )
   s.files += %w( third_party/nanopb/pb_decode.c )
   s.files += %w( third_party/nanopb/pb_encode.c )
-  s.files += %w( src/core/ext/lb_policy/pick_first/pick_first.c )
-  s.files += %w( src/core/ext/lb_policy/round_robin/round_robin.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c )
-  s.files += %w( src/core/ext/resolver/dns/native/dns_resolver.c )
-  s.files += %w( src/core/ext/resolver/sockaddr/sockaddr_resolver.c )
-  s.files += %w( src/core/ext/load_reporting/load_reporting.c )
-  s.files += %w( src/core/ext/load_reporting/load_reporting_filter.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting.c )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting_filter.c )
   s.files += %w( src/core/ext/census/base_resources.c )
   s.files += %w( src/core/ext/census/context.c )
   s.files += %w( src/core/ext/census/gen/census.pb.c )
@@ -605,6 +604,7 @@ Gem::Specification.new do |s|
   s.files += %w( src/core/ext/census/resource.c )
   s.files += %w( src/core/ext/census/trace_context.c )
   s.files += %w( src/core/ext/census/tracing.c )
+  s.files += %w( src/core/ext/filters/max_age/max_age_filter.c )
   s.files += %w( src/core/plugin_registry/grpc_plugin_registry.c )
   s.files += %w( third_party/boringssl/crypto/aes/internal.h )
   s.files += %w( third_party/boringssl/crypto/asn1/asn1_locl.h )
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index aa4210b1a767ae5e7ef311759f3ebc866ba5c208..5beac83a3bc038b9c03b35e84a23f34f3c456c00 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -152,6 +152,9 @@ typedef struct {
 #define GRPC_ARG_ENABLE_CENSUS "grpc.census"
 /** If non-zero, enable load reporting. */
 #define GRPC_ARG_ENABLE_LOAD_REPORTING "grpc.loadreporting"
+/** Request that optional features default to off (regardless of what they
+    usually default to) - to enable tight control over what gets enabled */
+#define GRPC_ARG_MINIMAL_STACK "grpc.minimal_stack"
 /** Maximum number of concurrent incoming streams to allow on a http2
     connection. Int valued. */
 #define GRPC_ARG_MAX_CONCURRENT_STREAMS "grpc.max_concurrent_streams"
diff --git a/package.xml b/package.xml
index 382393cbe59f510c653b9f58c049d1b8b89c08e0..6957ecca7318fc0cedc11daed4828c65198de764 100644
--- a/package.xml
+++ b/package.xml
@@ -192,7 +192,6 @@
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker_registry.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/channel/max_age_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/message_size_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/algorithm_metadata.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/message_compress.h" role="src" />
@@ -335,37 +334,37 @@
     <file baseinstalldir="/" name="src/core/tsi/transport_security.h" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/transport_security_interface.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/connector.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/retry_throttle.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel_index.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/uri_parser.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/connector.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_connect_handshaker.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_proxy.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/parse_address.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/retry_throttle.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel_index.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/uri_parser.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/chttp2_connector.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb_channel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_common.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_decode.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_encode.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting_filter.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/aggregation.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/base_resources.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/census_interface.h" role="src" />
@@ -382,6 +381,7 @@
     <file baseinstalldir="/" name="src/core/ext/census/trace_status.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/trace_string.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/tracing.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/max_age/max_age_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/init.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/channel_args.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/channel_stack.c" role="src" />
@@ -394,7 +394,6 @@
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker_registry.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.c" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/channel/max_age_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/message_size_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/compression.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/message_compress.c" role="src" />
@@ -559,47 +558,47 @@
     <file baseinstalldir="/" name="src/core/tsi/transport_security.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/secure/secure_channel_create.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/channel_connectivity.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_plugin.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/connector.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/retry_throttle.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel_index.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/uri_parser.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/channel_connectivity.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_plugin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/connector.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_connect_handshaker.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_proxy.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/parse_address.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/retry_throttle.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel_index.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/uri_parser.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/chttp2_connector.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/insecure/server_chttp2.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/insecure/channel_create.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_common.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_decode.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_encode.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/pick_first/pick_first.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/round_robin/round_robin.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/native/dns_resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/sockaddr/sockaddr_resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/base_resources.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/context.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/gen/census.pb.c" role="src" />
@@ -614,6 +613,7 @@
     <file baseinstalldir="/" name="src/core/ext/census/resource.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/trace_context.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/tracing.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/max_age/max_age_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/plugin_registry/grpc_plugin_registry.c" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/crypto/aes/internal.h" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/crypto/asn1/asn1_locl.h" role="src" />
diff --git a/src/core/ext/census/gen/trace_context.pb.h b/src/core/ext/census/gen/trace_context.pb.h
index ea127bf70a79ae21ab46cd4c7937f9de5c5dca9f..6fafc04c813d7c34fb0e68e4f7f4e24ecdb052e4 100644
--- a/src/core/ext/census/gen/trace_context.pb.h
+++ b/src/core/ext/census/gen/trace_context.pb.h
@@ -90,4 +90,4 @@ extern const pb_field_t google_trace_TraceContext_fields[5];
 #endif
 /* @@protoc_insertion_point(eof) */
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H */
diff --git a/src/core/ext/census/grpc_plugin.c b/src/core/ext/census/grpc_plugin.c
index c9fe453af867e533d6c925a9d6fa1ec3eaae1fee..28d266e22ae140e8ce98c70bd5414077b1af444b 100644
--- a/src/core/ext/census/grpc_plugin.c
+++ b/src/core/ext/census/grpc_plugin.c
@@ -48,7 +48,7 @@ static bool is_census_enabled(const grpc_channel_args *a) {
       return a->args[i].value.integer != 0 && census_enabled();
     }
   }
-  return census_enabled();
+  return census_enabled() && !grpc_channel_args_want_minimal_stack(a);
 }
 
 static bool maybe_add_census_filter(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/ext/census/trace_label.h b/src/core/ext/census/trace_label.h
index 0e4a8d885f15a349dee8a57146b1d471ada8dc53..701f6f5a6369f0e3dc6838a7299256134c68884c 100644
--- a/src/core/ext/census/trace_label.h
+++ b/src/core/ext/census/trace_label.h
@@ -58,4 +58,4 @@ typedef struct trace_label {
   } value;
 } trace_label;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_LABEL_H */
diff --git a/src/core/ext/census/trace_propagation.h b/src/core/ext/census/trace_propagation.h
index 75c4ebaa3988df0cd7f39b2129ded1f148cfcf58..0c27bfa111371d8c9a35844513f7416157f83ec1 100644
--- a/src/core/ext/census/trace_propagation.h
+++ b/src/core/ext/census/trace_propagation.h
@@ -60,4 +60,4 @@ size_t trace_span_context_to_http_format(const trace_span_context *ctxt,
 size_t http_format_to_trace_span_context(const char *buf, size_t buf_size,
                                          trace_span_context *ctxt);
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_PROPAGATION_H */
diff --git a/src/core/ext/census/trace_status.h b/src/core/ext/census/trace_status.h
index adc0ebd0c02ba7af8c2db9f51cd4153f95de17cb..0734ec6d3d594c64ce044ca2d893351067507078 100644
--- a/src/core/ext/census/trace_status.h
+++ b/src/core/ext/census/trace_status.h
@@ -42,4 +42,4 @@ typedef struct trace_status {
   trace_string errorMessage;
 } trace_status;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STATUS_H */
diff --git a/src/core/ext/census/trace_string.h b/src/core/ext/census/trace_string.h
index 8e77ee9f7ed76e52d3906588641451c44b4c1457..cd63cfb92f45e9dec8492bd874011f3b05e21a3b 100644
--- a/src/core/ext/census/trace_string.h
+++ b/src/core/ext/census/trace_string.h
@@ -47,4 +47,4 @@ typedef struct trace_string {
   size_t length;
 } trace_string;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STRING_H */
diff --git a/src/core/ext/census/tracing.h b/src/core/ext/census/tracing.h
index c2b947ae407ce32c5541934c10937ea6f4be617a..3a7c6f45e433ce056d397bb8bc9d092d66e58139 100644
--- a/src/core/ext/census/tracing.h
+++ b/src/core/ext/census/tracing.h
@@ -121,4 +121,4 @@ free to ignore all further calls using the Span. EndSpanOptions can
 optionally be NULL. */
 void trace_end_span(const trace_status *status, trace_span_context *span_ctxt);
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACING_H */
diff --git a/src/core/ext/client_channel/README.md b/src/core/ext/filters/client_channel/README.md
similarity index 100%
rename from src/core/ext/client_channel/README.md
rename to src/core/ext/filters/client_channel/README.md
diff --git a/src/core/ext/client_channel/channel_connectivity.c b/src/core/ext/filters/client_channel/channel_connectivity.c
similarity index 99%
rename from src/core/ext/client_channel/channel_connectivity.c
rename to src/core/ext/filters/client_channel/channel_connectivity.c
index f6cb3b9115a2235f6ad44c0dbcfaa6de3a472411..62f58fb278a2f71d40e1ab8fe12fffadc9ed9ddf 100644
--- a/src/core/ext/client_channel/channel_connectivity.c
+++ b/src/core/ext/filters/client_channel/channel_connectivity.c
@@ -36,7 +36,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/lib/iomgr/timer.h"
 #include "src/core/lib/surface/api_trace.h"
 #include "src/core/lib/surface/completion_queue.h"
diff --git a/src/core/ext/client_channel/client_channel.c b/src/core/ext/filters/client_channel/client_channel.c
similarity index 99%
rename from src/core/ext/client_channel/client_channel.c
rename to src/core/ext/filters/client_channel/client_channel.c
index 477d0e792bdd965ee1517a3c43f5ba9725e91f31..93ad53aab93a4188d3b1460fec6ae8accbdca002 100644
--- a/src/core/ext/client_channel/client_channel.c
+++ b/src/core/ext/filters/client_channel/client_channel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 
 #include <stdbool.h>
 #include <stdio.h>
@@ -43,12 +43,12 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/retry_throttle.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/deadline_filter.h"
diff --git a/src/core/ext/client_channel/client_channel.h b/src/core/ext/filters/client_channel/client_channel.h
similarity index 88%
rename from src/core/ext/client_channel/client_channel.h
rename to src/core/ext/filters/client_channel/client_channel.h
index 5e6e64e58bc1ea7722702fc1c69b21a4339d7a8f..8d2490ea55d7be7d60da68e86d3c23ea1fcd9f82 100644
--- a/src/core/ext/client_channel/client_channel.h
+++ b/src/core/ext/filters/client_channel/client_channel.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 // Channel arg key for server URI string.
@@ -61,4 +61,4 @@ void grpc_client_channel_watch_connectivity_state(
 grpc_subchannel_call *grpc_client_channel_get_subchannel_call(
     grpc_call_element *elem);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H */
diff --git a/src/core/ext/client_channel/client_channel_factory.c b/src/core/ext/filters/client_channel/client_channel_factory.c
similarity index 97%
rename from src/core/ext/client_channel/client_channel_factory.c
rename to src/core/ext/filters/client_channel/client_channel_factory.c
index d2707a155668de891a765eca024198fc26cb1553..44e83b54b57a6fc09a0a3ad80e864ba89d906071 100644
--- a/src/core/ext/client_channel/client_channel_factory.c
+++ b/src/core/ext/filters/client_channel/client_channel_factory.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
 
 void grpc_client_channel_factory_ref(grpc_client_channel_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/ext/client_channel/client_channel_factory.h b/src/core/ext/filters/client_channel/client_channel_factory.h
similarity index 93%
rename from src/core/ext/client_channel/client_channel_factory.h
rename to src/core/ext/filters/client_channel/client_channel_factory.h
index bf2764b5370f8d2e0b2540a4580145aaf9f47923..2355588f1876d6f20dcf18b63ef98d90f9fefa86 100644
--- a/src/core/ext/client_channel/client_channel_factory.h
+++ b/src/core/ext/filters/client_channel/client_channel_factory.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
 
 #include <grpc/impl/codegen/grpc_types.h>
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 // Channel arg key for client channel factory.
@@ -89,4 +89,4 @@ grpc_channel *grpc_client_channel_factory_create_channel(
 grpc_arg grpc_client_channel_factory_create_channel_arg(
     grpc_client_channel_factory *factory);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */
diff --git a/src/core/ext/client_channel/client_channel_plugin.c b/src/core/ext/filters/client_channel/client_channel_plugin.c
similarity index 88%
rename from src/core/ext/client_channel/client_channel_plugin.c
rename to src/core/ext/filters/client_channel/client_channel_plugin.c
index f51277d0b29bffa3485d8311b12c93b268cf7293..944af01af468fbf2434dfa0d1d35f7ccd46dc7af 100644
--- a/src/core/ext/client_channel/client_channel_plugin.c
+++ b/src/core/ext/filters/client_channel/client_channel_plugin.c
@@ -37,14 +37,14 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/http_proxy.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/retry_throttle.h"
-#include "src/core/ext/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/http_proxy.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
 #include "src/core/lib/surface/channel_init.h"
 
 static bool append_filter(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/ext/client_channel/connector.c b/src/core/ext/filters/client_channel/connector.c
similarity index 97%
rename from src/core/ext/client_channel/connector.c
rename to src/core/ext/filters/client_channel/connector.c
index 7a720fd1bd22063e8cce685c4238aeb957f0d5df..51c1d7ece7f20bff755c1a89d7ff79574e3da38f 100644
--- a/src/core/ext/client_channel/connector.c
+++ b/src/core/ext/filters/client_channel/connector.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 
 grpc_connector* grpc_connector_ref(grpc_connector* connector) {
   connector->vtable->ref(connector);
diff --git a/src/core/ext/client_channel/connector.h b/src/core/ext/filters/client_channel/connector.h
similarity index 95%
rename from src/core/ext/client_channel/connector.h
rename to src/core/ext/filters/client_channel/connector.h
index 94b5fb5c9e1ffd06ad83ea92aa09f4f6f112f382..23040c3e234eb0712c8a067165c71177f982de77 100644
--- a/src/core/ext/client_channel/connector.h
+++ b/src/core/ext/filters/client_channel/connector.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
 
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/resolve_address.h"
@@ -85,4 +85,4 @@ void grpc_connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
 void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
                              grpc_error *why);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H */
diff --git a/src/core/ext/client_channel/http_connect_handshaker.c b/src/core/ext/filters/client_channel/http_connect_handshaker.c
similarity index 98%
rename from src/core/ext/client_channel/http_connect_handshaker.c
rename to src/core/ext/filters/client_channel/http_connect_handshaker.c
index 778d76c39fd4ce5c320658329d6f23bc76a4dd69..c09a863d00832c28e04f69777a5da0879bc7af66 100644
--- a/src/core/ext/client_channel/http_connect_handshaker.c
+++ b/src/core/ext/filters/client_channel/http_connect_handshaker.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
 
 #include <string.h>
 
@@ -40,9 +40,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/handshaker_registry.h"
 #include "src/core/lib/http/format_request.h"
diff --git a/src/core/ext/client_channel/http_connect_handshaker.h b/src/core/ext/filters/client_channel/http_connect_handshaker.h
similarity index 90%
rename from src/core/ext/client_channel/http_connect_handshaker.h
rename to src/core/ext/filters/client_channel/http_connect_handshaker.h
index 3059d551e34391a027b8c032c58ec017caf23fa7..6d7c204d71c34e66151322f8cc6ed2a66ed8b821 100644
--- a/src/core/ext/client_channel/http_connect_handshaker.h
+++ b/src/core/ext/filters/client_channel/http_connect_handshaker.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
 
 /// Channel arg indicating the server in HTTP CONNECT request (string).
 /// The presence of this arg triggers the use of HTTP CONNECT.
@@ -46,4 +46,4 @@
 /// Registers handshaker factory.
 void grpc_http_connect_register_handshaker_factory();
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H */
diff --git a/src/core/ext/client_channel/http_proxy.c b/src/core/ext/filters/client_channel/http_proxy.c
similarity index 94%
rename from src/core/ext/client_channel/http_proxy.c
rename to src/core/ext/filters/client_channel/http_proxy.c
index e280cef101fa198b02fdd775f935875feb99cd65..f8a2d06b8a8f3af72a7aebbb715e7ac3cfd9689a 100644
--- a/src/core/ext/client_channel/http_proxy.c
+++ b/src/core/ext/filters/client_channel/http_proxy.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/http_proxy.h"
+#include "src/core/ext/filters/client_channel/http_proxy.h"
 
 #include <stdbool.h>
 #include <string.h>
@@ -40,9 +40,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/support/env.h"
 
diff --git a/src/core/ext/client_channel/http_proxy.h b/src/core/ext/filters/client_channel/http_proxy.h
similarity index 90%
rename from src/core/ext/client_channel/http_proxy.h
rename to src/core/ext/filters/client_channel/http_proxy.h
index c8882b1ef183955c5322fe7f765e610ab59b065d..f0df74bbda2b12432cfbda2da15ba0f99f793c35 100644
--- a/src/core/ext/client_channel/http_proxy.h
+++ b/src/core/ext/filters/client_channel/http_proxy.h
@@ -31,9 +31,9 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
 
 void grpc_register_http_proxy_mapper();
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H */
diff --git a/src/core/ext/client_channel/lb_policy.c b/src/core/ext/filters/client_channel/lb_policy.c
similarity index 99%
rename from src/core/ext/client_channel/lb_policy.c
rename to src/core/ext/filters/client_channel/lb_policy.c
index aba51add53c73999eaa5ba36ede40b14012fbe40..2d31499d13e38d6b996b9596740d198e13733a40 100644
--- a/src/core/ext/client_channel/lb_policy.c
+++ b/src/core/ext/filters/client_channel/lb_policy.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/lb_policy.h"
 #include "src/core/lib/iomgr/combiner.h"
 
 #define WEAK_REF_BITS 16
diff --git a/src/core/ext/client_channel/lb_policy.h b/src/core/ext/filters/client_channel/lb_policy.h
similarity index 97%
rename from src/core/ext/client_channel/lb_policy.h
rename to src/core/ext/filters/client_channel/lb_policy.h
index 3405709c2cf10118fae53f5c7a6e20e98072eee9..25427666ae75566015fd705b5875401d016a4504 100644
--- a/src/core/ext/client_channel/lb_policy.h
+++ b/src/core/ext/filters/client_channel/lb_policy.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
@@ -206,4 +206,4 @@ grpc_connectivity_state grpc_lb_policy_check_connectivity_locked(
     grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
     grpc_error **connectivity_error);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
similarity index 99%
rename from src/core/ext/lb_policy/grpclb/grpclb.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
index 629d81953c9dd6c4c35900ddd6a4492b307f0ad8..ff8d319309820b84335476485ce6ff031f2ca9cb 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
@@ -106,14 +106,14 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/sockaddr.h"
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
similarity index 86%
rename from src/core/ext/lb_policy/grpclb/grpclb.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
index ff23f3a54586f39f45a5146a9a1b55fca5c21c08..b069fae2f80b9e531e3253fc10564bfcae791c63 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 /** Returns a load balancing factory for the glb policy, which tries to connect
  * to a load balancing server to decide the next successfully connected
  * subchannel to pick. */
 grpc_lb_policy_factory *grpc_glb_lb_factory_create();
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
similarity index 96%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
index 1b8bbab1b69954c0e34878a78b8857a537245c69..d6201f23879e7bbaf81919468fb4f5a677eac6d0 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
@@ -34,8 +34,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/support/string.h"
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
similarity index 88%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
index f66082d78ee887e3c1fa5d48babde91b15ec3038..9730c971d97c7c09399cf0bf744756a91cd1515f 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 #include "src/core/lib/slice/slice_hash_table.h"
 
 /** Create the channel used for communicating with an LB service.
@@ -53,4 +53,5 @@ grpc_channel_args *get_lb_channel_args(grpc_exec_ctx *exec_ctx,
                                        grpc_slice_hash_table *targets_info,
                                        const grpc_channel_args *args);
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H \
+          */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
similarity index 97%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
index 2fee5f1b8eababb0532d9b4919c62343c25192a9..a145cba63caafe581300496b3ced3c9277a8fb04 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
@@ -34,8 +34,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/security/credentials/credentials.h"
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
similarity index 99%
rename from src/core/ext/lb_policy/grpclb/load_balancer_api.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
index 3c4604c4022f20a9f5b25ea37808eb6a7205678a..10af2525313ef24fecd0a97d0b1780cf771c8e9b 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 #include "third_party/nanopb/pb_decode.h"
 #include "third_party/nanopb/pb_encode.h"
 
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
similarity index 90%
rename from src/core/ext/lb_policy/grpclb/load_balancer_api.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
index b4c967e426657d076dadac6a05ce83f188adb3af..d014b8800ca2b47a9b7757d88ac641c690be07cc 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
 
 #include <grpc/slice_buffer.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -101,4 +101,5 @@ void grpc_grpclb_initial_response_destroy(
 }
 #endif
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H \
+          */
diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
similarity index 98%
rename from src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
index e352e0396f8f5de3abd72e0f2b66418599f1ee95..e9adf98711e09b58b64b1058666e9208720f8396 100644
--- a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
@@ -1,7 +1,7 @@
 /* Automatically generated nanopb constant definitions */
 /* Generated by nanopb-0.3.7-dev */
 
-#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
 
 /* @@protoc_insertion_point(includes) */
 #if PB_PROTO_HEADER_VERSION != 30
diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
similarity index 100%
rename from src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
similarity index 99%
rename from src/core/ext/lb_policy/pick_first/pick_first.c
rename to src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
index 8c73ea6014195ec90d1b896dffa15d24064332ea..2b77cd39b84d79e75ed01c439f2f4ed1d6e19ebf 100644
--- a/src/core/ext/lb_policy/pick_first/pick_first.c
+++ b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
@@ -35,8 +35,8 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
similarity index 99%
rename from src/core/ext/lb_policy/round_robin/round_robin.c
rename to src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
index 8665b5c6c849118112ee66eb1be1dac7987d0e84..ff41e61b3e6ade49fc0d8a21d88700f9b93cd117 100644
--- a/src/core/ext/lb_policy/round_robin/round_robin.c
+++ b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
@@ -63,8 +63,8 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/iomgr/combiner.h"
diff --git a/src/core/ext/client_channel/lb_policy_factory.c b/src/core/ext/filters/client_channel/lb_policy_factory.c
similarity index 99%
rename from src/core/ext/client_channel/lb_policy_factory.c
rename to src/core/ext/filters/client_channel/lb_policy_factory.c
index 7af9bb04112818bf74a72591fede31ac97f886a0..e2af216b8996ced334024cf98bcd571a9e97d829 100644
--- a/src/core/ext/client_channel/lb_policy_factory.c
+++ b/src/core/ext/filters/client_channel/lb_policy_factory.c
@@ -36,7 +36,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 grpc_lb_addresses* grpc_lb_addresses_create(
     size_t num_addresses, const grpc_lb_user_data_vtable* user_data_vtable) {
diff --git a/src/core/ext/client_channel/lb_policy_factory.h b/src/core/ext/filters/client_channel/lb_policy_factory.h
similarity index 94%
rename from src/core/ext/client_channel/lb_policy_factory.h
rename to src/core/ext/filters/client_channel/lb_policy_factory.h
index 27c12c0d73dd8697ec719605ca5633debb0ac044..81ab12ec8f96da4d6de70bccb7da8047dba4f42f 100644
--- a/src/core/ext/client_channel/lb_policy_factory.h
+++ b/src/core/ext/filters/client_channel/lb_policy_factory.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy.h"
 
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/resolve_address.h"
@@ -131,4 +131,4 @@ grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy(
     grpc_exec_ctx *exec_ctx, grpc_lb_policy_factory *factory,
     grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H */
diff --git a/src/core/ext/client_channel/lb_policy_registry.c b/src/core/ext/filters/client_channel/lb_policy_registry.c
similarity index 97%
rename from src/core/ext/client_channel/lb_policy_registry.c
rename to src/core/ext/filters/client_channel/lb_policy_registry.c
index 90c149d947b2e06c22ad00431c906d0b88f6db0c..1376673bcab4783888710773d1baf4fcaf74d308 100644
--- a/src/core/ext/client_channel/lb_policy_registry.c
+++ b/src/core/ext/filters/client_channel/lb_policy_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/lb_policy_registry.h b/src/core/ext/filters/client_channel/lb_policy_registry.h
similarity index 89%
rename from src/core/ext/client_channel/lb_policy_registry.h
rename to src/core/ext/filters/client_channel/lb_policy_registry.h
index 21c468e02107656a3a99c287f1d67bddbba96f30..dfdec1347fa3f4520c7e92436be6926369b32335 100644
--- a/src/core/ext/client_channel/lb_policy_registry.h
+++ b/src/core/ext/filters/client_channel/lb_policy_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
 /** Initialize the registry and set \a default_factory as the factory to be
@@ -52,4 +52,4 @@ void grpc_register_lb_policy(grpc_lb_policy_factory *factory);
 grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name,
                                       grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */
diff --git a/src/core/ext/client_channel/parse_address.c b/src/core/ext/filters/client_channel/parse_address.c
similarity index 98%
rename from src/core/ext/client_channel/parse_address.c
rename to src/core/ext/filters/client_channel/parse_address.c
index cd1b2cd80cf662db5d4b78c38a91f2e59f5ad0a7..0c970620756bdcf6655e9d49d743d70a61477c78 100644
--- a/src/core/ext/client_channel/parse_address.c
+++ b/src/core/ext/filters/client_channel/parse_address.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 
 #include <stdio.h>
diff --git a/src/core/ext/client_channel/parse_address.h b/src/core/ext/filters/client_channel/parse_address.h
similarity index 90%
rename from src/core/ext/client_channel/parse_address.h
rename to src/core/ext/filters/client_channel/parse_address.h
index bf99c5298a2b0651742f3ebf607656f0cfc727a4..c8d77baa008892873278e496d48839c72fbf452a 100644
--- a/src/core/ext/client_channel/parse_address.h
+++ b/src/core/ext/filters/client_channel/parse_address.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
 
 #include <stddef.h>
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 
 /** Populate \a addr and \a len from \a uri, whose path is expected to contain a
@@ -51,4 +51,4 @@ int parse_ipv4(grpc_uri *uri, grpc_resolved_address *resolved_addr);
  * host:port pair. Returns true upon success. */
 int parse_ipv6(grpc_uri *uri, grpc_resolved_address *resolved_addr);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H */
diff --git a/src/core/ext/client_channel/proxy_mapper.c b/src/core/ext/filters/client_channel/proxy_mapper.c
similarity index 97%
rename from src/core/ext/client_channel/proxy_mapper.c
rename to src/core/ext/filters/client_channel/proxy_mapper.c
index f92afe847bfc384594318e17a655c6257c914ddf..6dddd3c6da03c5c2e8a25bebbe1c37aa63e401f5 100644
--- a/src/core/ext/client_channel/proxy_mapper.c
+++ b/src/core/ext/filters/client_channel/proxy_mapper.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/proxy_mapper.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper.h"
 
 void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
                             grpc_proxy_mapper* mapper) {
diff --git a/src/core/ext/client_channel/proxy_mapper.h b/src/core/ext/filters/client_channel/proxy_mapper.h
similarity index 95%
rename from src/core/ext/client_channel/proxy_mapper.h
rename to src/core/ext/filters/client_channel/proxy_mapper.h
index 6e4607fe4d9553a63ee78998b3ed55d8b558ff4a..d0c47d3090fda1b4388a00c6100b24eb5434e315 100644
--- a/src/core/ext/client_channel/proxy_mapper.h
+++ b/src/core/ext/filters/client_channel/proxy_mapper.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
 
 #include <stdbool.h>
 
@@ -86,4 +86,4 @@ bool grpc_proxy_mapper_map_address(grpc_exec_ctx* exec_ctx,
 
 void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H */
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.c b/src/core/ext/filters/client_channel/proxy_mapper_registry.c
similarity index 98%
rename from src/core/ext/client_channel/proxy_mapper_registry.c
rename to src/core/ext/filters/client_channel/proxy_mapper_registry.c
index 0935ddbdbd15e3ff58a90087805eb47a0726c995..7a39289a844b1521546577dfe3a380f004dd9b9a 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.c
+++ b/src/core/ext/filters/client_channel/proxy_mapper_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.h b/src/core/ext/filters/client_channel/proxy_mapper_registry.h
similarity index 90%
rename from src/core/ext/client_channel/proxy_mapper_registry.h
rename to src/core/ext/filters/client_channel/proxy_mapper_registry.h
index 742b57a2d49a436737eeb1f54d61d0874e8c7b23..8b5686d664c84fed8b11bff717cbabdbe48c4d1c 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.h
+++ b/src/core/ext/filters/client_channel/proxy_mapper_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
 
-#include "src/core/ext/client_channel/proxy_mapper.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper.h"
 
 void grpc_proxy_mapper_registry_init();
 void grpc_proxy_mapper_registry_shutdown();
@@ -56,4 +56,4 @@ bool grpc_proxy_mappers_map_address(grpc_exec_ctx* exec_ctx,
                                     grpc_resolved_address** new_address,
                                     grpc_channel_args** new_args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */
diff --git a/src/core/ext/client_channel/resolver.c b/src/core/ext/filters/client_channel/resolver.c
similarity index 98%
rename from src/core/ext/client_channel/resolver.c
rename to src/core/ext/filters/client_channel/resolver.c
index b1a1faa6c962af594d6a48d5491dd8cd5f5f6a52..cafa2837f3b3f750cba79a9ed75f4bcbe1e0736d 100644
--- a/src/core/ext/client_channel/resolver.c
+++ b/src/core/ext/filters/client_channel/resolver.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
 #include "src/core/lib/iomgr/combiner.h"
 
 void grpc_resolver_init(grpc_resolver *resolver,
diff --git a/src/core/ext/client_channel/resolver.h b/src/core/ext/filters/client_channel/resolver.h
similarity index 94%
rename from src/core/ext/client_channel/resolver.h
rename to src/core/ext/filters/client_channel/resolver.h
index bbba424ca5d716ac82e38389cff66b55f772562f..55f9124b3ab5373e081e9d817979bbb954279db8 100644
--- a/src/core/ext/client_channel/resolver.h
+++ b/src/core/ext/filters/client_channel/resolver.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/iomgr/iomgr.h"
 
 typedef struct grpc_resolver grpc_resolver;
@@ -98,4 +98,4 @@ void grpc_resolver_next_locked(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
                                grpc_channel_args **result,
                                grpc_closure *on_complete);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H */
diff --git a/src/core/ext/resolver/README.md b/src/core/ext/filters/client_channel/resolver/README.md
similarity index 100%
rename from src/core/ext/resolver/README.md
rename to src/core/ext/filters/client_channel/resolver/README.md
diff --git a/src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
similarity index 97%
rename from src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
index f27da231f5668a36dc6d4de04d1b20945cfbd463..ffaeeed3242c492d31a56358ab8d742e3ff0e73c 100644
--- a/src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
@@ -40,10 +40,10 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
similarity index 90%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
index fa22e11be4d1894ffedfa80e6ab835835b672c84..324a9136eb8b20411078200cff19e81b1fb87d99 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
-#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
 
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/pollset_set.h"
@@ -60,4 +60,5 @@ grpc_error *grpc_ares_ev_driver_create(grpc_ares_ev_driver **ev_driver,
    of ARES_ECANCELLED. */
 void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver);
 
-#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H \
+          */
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
similarity index 98%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
index dd102e5dd6b77ebce4ecdd448d902b3e070d8e5b..6045fc2241a7bb62e82c6ac3c95220b6ddfdd7f3 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
@@ -36,14 +36,14 @@
 
 #include <ares.h>
 
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/iomgr/iomgr_internal.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
similarity index 98%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
index 3eee8e3513ba1dbe9331d6b9158a3c930f2d4e8c..09c46a66e0b0fd981ab206f855bf1275f6d122a3 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
@@ -34,7 +34,7 @@
 #include <grpc/support/port_platform.h>
 #if GRPC_ARES == 1 && !defined(GRPC_UV)
 
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/iomgr/socket_utils_posix.h"
 
@@ -48,7 +48,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h"
 #include "src/core/lib/iomgr/executor.h"
 #include "src/core/lib/iomgr/iomgr_internal.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
similarity index 91%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
index ab00a26b36a7f919a6ea25bd9d29340fb545d898..3dd40ea2687b7fec3a45d68f21a61206111aea96 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
-#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
 
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/iomgr.h"
@@ -60,4 +60,5 @@ grpc_error *grpc_ares_init(void);
    it has been called the same number of times as grpc_ares_init(). */
 void grpc_ares_cleanup(void);
 
-#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H \
+          */
diff --git a/src/core/ext/resolver/dns/native/README.md b/src/core/ext/filters/client_channel/resolver/dns/native/README.md
similarity index 100%
rename from src/core/ext/resolver/dns/native/README.md
rename to src/core/ext/filters/client_channel/resolver/dns/native/README.md
diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
similarity index 98%
rename from src/core/ext/resolver/dns/native/dns_resolver.c
rename to src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
index 97cd0486a9fd98f4306cc00aa9a69b0fd00cf646..ebe6a0721525aef674788d517ff902b628d7df20 100644
--- a/src/core/ext/resolver/dns/native/dns_resolver.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
@@ -37,8 +37,8 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/resolver/sockaddr/README.md b/src/core/ext/filters/client_channel/resolver/sockaddr/README.md
similarity index 100%
rename from src/core/ext/resolver/sockaddr/README.md
rename to src/core/ext/filters/client_channel/resolver/sockaddr/README.md
diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
similarity index 97%
rename from src/core/ext/resolver/sockaddr/sockaddr_resolver.c
rename to src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
index da5923d26f5d584dc40d0ce0a828c45c7f499ede..54f020d6914104f5f6c13b181e8be5f044c77b6f 100644
--- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+++ b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
@@ -41,9 +41,9 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/client_channel/resolver_factory.c b/src/core/ext/filters/client_channel/resolver_factory.c
similarity index 97%
rename from src/core/ext/client_channel/resolver_factory.c
rename to src/core/ext/filters/client_channel/resolver_factory.c
index 00bbb92dd06adb8da427c9af3f1490dd1310ebbb..07f9e4cf0334c945f432660ded19b9a539a27d31 100644
--- a/src/core/ext/client_channel/resolver_factory.c
+++ b/src/core/ext/filters/client_channel/resolver_factory.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver_factory.h"
+#include "src/core/ext/filters/client_channel/resolver_factory.h"
 
 void grpc_resolver_factory_ref(grpc_resolver_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/ext/client_channel/resolver_factory.h b/src/core/ext/filters/client_channel/resolver_factory.h
similarity index 89%
rename from src/core/ext/client_channel/resolver_factory.h
rename to src/core/ext/filters/client_channel/resolver_factory.h
index e3cd99ec5a4b997307009e2cb3662812568946f5..f2fcfc06fefd0ac278ecf1bf5b5e48a5d383a239 100644
--- a/src/core/ext/client_channel/resolver_factory.h
+++ b/src/core/ext/filters/client_channel/resolver_factory.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/resolver.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/pollset_set.h"
 
 typedef struct grpc_resolver_factory grpc_resolver_factory;
@@ -82,4 +82,4 @@ grpc_resolver *grpc_resolver_factory_create_resolver(
 char *grpc_resolver_factory_get_default_authority(
     grpc_resolver_factory *factory, grpc_uri *uri);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H */
diff --git a/src/core/ext/client_channel/resolver_registry.c b/src/core/ext/filters/client_channel/resolver_registry.c
similarity index 98%
rename from src/core/ext/client_channel/resolver_registry.c
rename to src/core/ext/filters/client_channel/resolver_registry.c
index 0f074a3386cb302adbd69cf3c4b0ee9a7eb506a6..fa997bd68f1a941197bbe54c13b3703fac9379b5 100644
--- a/src/core/ext/client_channel/resolver_registry.c
+++ b/src/core/ext/filters/client_channel/resolver_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/resolver_registry.h b/src/core/ext/filters/client_channel/resolver_registry.h
similarity index 93%
rename from src/core/ext/client_channel/resolver_registry.h
rename to src/core/ext/filters/client_channel/resolver_registry.h
index 1a3ebee25a8465dd36fc77396012eff974423390..f2e9f9249ca758872eb00bec7cfc303a3575e11d 100644
--- a/src/core/ext/client_channel/resolver_registry.h
+++ b/src/core/ext/filters/client_channel/resolver_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
 
-#include "src/core/ext/client_channel/resolver_factory.h"
+#include "src/core/ext/filters/client_channel/resolver_factory.h"
 #include "src/core/lib/iomgr/pollset_set.h"
 
 void grpc_resolver_registry_init();
@@ -81,4 +81,4 @@ char *grpc_get_default_authority(grpc_exec_ctx *exec_ctx, const char *target);
 char *grpc_resolver_factory_add_default_prefix_if_needed(
     grpc_exec_ctx *exec_ctx, const char *target);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H */
diff --git a/src/core/ext/client_channel/retry_throttle.c b/src/core/ext/filters/client_channel/retry_throttle.c
similarity index 99%
rename from src/core/ext/client_channel/retry_throttle.c
rename to src/core/ext/filters/client_channel/retry_throttle.c
index 8926c3d7822d88efd28c3f2af44d6a6a86a07bba..dd78a178443c5c8ef0ea700859a3d8a209a4a0af 100644
--- a/src/core/ext/client_channel/retry_throttle.c
+++ b/src/core/ext/filters/client_channel/retry_throttle.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
 
 #include <limits.h>
 #include <string.h>
diff --git a/src/core/ext/client_channel/retry_throttle.h b/src/core/ext/filters/client_channel/retry_throttle.h
similarity index 93%
rename from src/core/ext/client_channel/retry_throttle.h
rename to src/core/ext/filters/client_channel/retry_throttle.h
index f9971faf6515cbd69b20b647e6700aa963e4fbf1..640865cf90f6ee2212fd1220b37ad22138cb79dc 100644
--- a/src/core/ext/client_channel/retry_throttle.h
+++ b/src/core/ext/filters/client_channel/retry_throttle.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
 
 #include <stdbool.h>
 
@@ -62,4 +62,4 @@ void grpc_retry_throttle_map_shutdown();
 grpc_server_retry_throttle_data* grpc_retry_throttle_map_get_data_for_server(
     const char* server_name, int max_milli_tokens, int milli_token_ratio);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H */
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/filters/client_channel/subchannel.c
similarity index 98%
rename from src/core/ext/client_channel/subchannel.c
rename to src/core/ext/filters/client_channel/subchannel.c
index 3a2cb00ca79036c624f12cbd7351809138b732a0..8086cdb87e0645322e8ae877639c76ab67afcb5f 100644
--- a/src/core/ext/client_channel/subchannel.c
+++ b/src/core/ext/filters/client_channel/subchannel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 
 #include <limits.h>
 #include <string.h>
@@ -40,11 +40,11 @@
 #include <grpc/support/avl.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/subchannel_index.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/client_channel/subchannel.h b/src/core/ext/filters/client_channel/subchannel.h
similarity index 97%
rename from src/core/ext/client_channel/subchannel.h
rename to src/core/ext/filters/client_channel/subchannel.h
index ba96c92df8376e0f53f625a2f05acee4c680c0a6..6473de49b0b6856aed341532d7e4d9fcbb2cd8e4 100644
--- a/src/core/ext/client_channel/subchannel.h
+++ b/src/core/ext/filters/client_channel/subchannel.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/support/arena.h"
@@ -200,4 +200,4 @@ const char *grpc_get_subchannel_address_uri_arg(const grpc_channel_args *args);
 /// Caller is responsible for freeing the string.
 grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H */
diff --git a/src/core/ext/client_channel/subchannel_index.c b/src/core/ext/filters/client_channel/subchannel_index.c
similarity index 99%
rename from src/core/ext/client_channel/subchannel_index.c
rename to src/core/ext/filters/client_channel/subchannel_index.c
index 11889300a2caebf36e429ed498946c83fbddd3de..f6ef4a845e85e37e2246e35613ed5a27e0213459 100644
--- a/src/core/ext/client_channel/subchannel_index.c
+++ b/src/core/ext/filters/client_channel/subchannel_index.c
@@ -31,7 +31,7 @@
 //
 //
 
-#include "src/core/ext/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
 
 #include <stdbool.h>
 #include <string.h>
diff --git a/src/core/ext/client_channel/subchannel_index.h b/src/core/ext/filters/client_channel/subchannel_index.h
similarity index 91%
rename from src/core/ext/client_channel/subchannel_index.h
rename to src/core/ext/filters/client_channel/subchannel_index.h
index a67bd5e2195deaf7684c4997a58747259a05c824..f673ade378271167ab5b2fac18ba0fe487dc764e 100644
--- a/src/core/ext/client_channel/subchannel_index.h
+++ b/src/core/ext/filters/client_channel/subchannel_index.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
 
-#include "src/core/ext/client_channel/connector.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 
 /** \file Provides an index of active subchannels so that they can be
     shared amongst channels */
@@ -74,4 +74,4 @@ void grpc_subchannel_index_init(void);
 /** Shutdown the subchannel index (global) */
 void grpc_subchannel_index_shutdown(void);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H */
diff --git a/src/core/ext/client_channel/uri_parser.c b/src/core/ext/filters/client_channel/uri_parser.c
similarity index 99%
rename from src/core/ext/client_channel/uri_parser.c
rename to src/core/ext/filters/client_channel/uri_parser.c
index d385db080183b608681e2c3a7ea0323b6c3c9ef2..01b99911aa426a46cdf96b6d1585ba5ca287529e 100644
--- a/src/core/ext/client_channel/uri_parser.c
+++ b/src/core/ext/filters/client_channel/uri_parser.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/uri_parser.h b/src/core/ext/filters/client_channel/uri_parser.h
similarity index 93%
rename from src/core/ext/client_channel/uri_parser.h
rename to src/core/ext/filters/client_channel/uri_parser.h
index efd4302c1c6258f3e35d130cd522cf40b3a77c6b..2698d448d8ea7fe08172f2b9b5c644cc44e4c118 100644
--- a/src/core/ext/client_channel/uri_parser.h
+++ b/src/core/ext/filters/client_channel/uri_parser.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H
 
 #include <stddef.h>
 #include "src/core/lib/iomgr/exec_ctx.h"
@@ -62,4 +62,4 @@ const char *grpc_uri_get_query_arg(const grpc_uri *uri, const char *key);
 /** destroy a uri */
 void grpc_uri_destroy(grpc_uri *uri);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H */
diff --git a/src/core/ext/load_reporting/load_reporting.c b/src/core/ext/filters/load_reporting/load_reporting.c
similarity index 96%
rename from src/core/ext/load_reporting/load_reporting.c
rename to src/core/ext/filters/load_reporting/load_reporting.c
index 942aea4fd1cf25f8f03703895066624583b9b466..9fb33bab711bd539d363b3b969a803ec84bb47a3 100644
--- a/src/core/ext/load_reporting/load_reporting.c
+++ b/src/core/ext/filters/load_reporting/load_reporting.c
@@ -38,8 +38,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_stack_builder.h"
 #include "src/core/lib/slice/slice_internal.h"
 #include "src/core/lib/surface/call.h"
diff --git a/src/core/ext/load_reporting/load_reporting.h b/src/core/ext/filters/load_reporting/load_reporting.h
similarity index 93%
rename from src/core/ext/load_reporting/load_reporting.h
rename to src/core/ext/filters/load_reporting/load_reporting.h
index 22859a599a7451d85c1b26bac232930e596a65ed..e05a9dcc715ad671c22bf36b7d1a5dfbf4810eb2 100644
--- a/src/core/ext/load_reporting/load_reporting.h
+++ b/src/core/ext/filters/load_reporting/load_reporting.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H
-#define GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H
+#ifndef GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H
+#define GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H
 
 #include <grpc/impl/codegen/grpc_types.h>
 
@@ -70,4 +70,4 @@ typedef struct grpc_load_reporting_call_data {
 /** Return a \a grpc_arg enabling load reporting */
 grpc_arg grpc_load_reporting_enable_arg();
 
-#endif /* GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H */
+#endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H */
diff --git a/src/core/ext/load_reporting/load_reporting_filter.c b/src/core/ext/filters/load_reporting/load_reporting_filter.c
similarity index 98%
rename from src/core/ext/load_reporting/load_reporting_filter.c
rename to src/core/ext/filters/load_reporting/load_reporting_filter.c
index 2e7b3580c3042027b8b15445e91291414038c597..57b25d06518f2827eaa7d7dea5dc9b0d5147532c 100644
--- a/src/core/ext/load_reporting/load_reporting_filter.c
+++ b/src/core/ext/filters/load_reporting/load_reporting_filter.c
@@ -39,8 +39,8 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/slice/slice_internal.h"
diff --git a/src/core/ext/load_reporting/load_reporting_filter.h b/src/core/ext/filters/load_reporting/load_reporting_filter.h
similarity index 85%
rename from src/core/ext/load_reporting/load_reporting_filter.h
rename to src/core/ext/filters/load_reporting/load_reporting_filter.h
index 160ed32af99c352045d7465eca2a02e9ad75f834..da884a147933f668d9d91440c0dfb095cf0ec722 100644
--- a/src/core/ext/load_reporting/load_reporting_filter.h
+++ b/src/core/ext/filters/load_reporting/load_reporting_filter.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
-#define GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
+#ifndef GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
 
-#include "src/core/ext/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_load_reporting_filter;
 
-#endif /* GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H */
diff --git a/src/core/lib/channel/max_age_filter.c b/src/core/ext/filters/max_age/max_age_filter.c
similarity index 93%
rename from src/core/lib/channel/max_age_filter.c
rename to src/core/ext/filters/max_age/max_age_filter.c
index c25481486c3b32d261377999d46edce4b67784a7..b03cb0ba0a9aa9a767bfd0fc1f099a67e98a0fa3 100644
--- a/src/core/lib/channel/max_age_filter.c
+++ b/src/core/ext/filters/max_age/max_age_filter.c
@@ -37,7 +37,9 @@
 #include <string.h>
 
 #include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
 #include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/surface/channel_init.h"
 #include "src/core/lib/transport/http2_errors.h"
 #include "src/core/lib/transport/service_config.h"
 
@@ -384,3 +386,34 @@ const grpc_channel_filter grpc_max_age_filter = {
     grpc_call_next_get_peer,
     grpc_channel_next_get_info,
     "max_age"};
+
+static bool maybe_add_max_age_filter(grpc_exec_ctx* exec_ctx,
+                                     grpc_channel_stack_builder* builder,
+                                     void* arg) {
+  const grpc_channel_args* channel_args =
+      grpc_channel_stack_builder_get_channel_arguments(builder);
+  const grpc_arg* a =
+      grpc_channel_args_find(channel_args, GRPC_ARG_MAX_CONNECTION_AGE_MS);
+  bool enable = false;
+  if (a != NULL && a->type == GRPC_ARG_INTEGER && a->value.integer != INT_MAX) {
+    enable = true;
+  }
+  a = grpc_channel_args_find(channel_args, GRPC_ARG_MAX_CONNECTION_IDLE_MS);
+  if (a != NULL && a->type == GRPC_ARG_INTEGER && a->value.integer != INT_MAX) {
+    enable = true;
+  }
+  if (enable) {
+    return grpc_channel_stack_builder_prepend_filter(
+        builder, &grpc_max_age_filter, NULL, NULL);
+  } else {
+    return true;
+  }
+}
+
+void grpc_max_age_filter_init(void) {
+  grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL,
+                                   GRPC_CHANNEL_INIT_BUILTIN_PRIORITY,
+                                   maybe_add_max_age_filter, NULL);
+}
+
+void grpc_max_age_filter_shutdown(void) {}
diff --git a/src/core/lib/channel/max_age_filter.h b/src/core/ext/filters/max_age/max_age_filter.h
similarity index 90%
rename from src/core/lib/channel/max_age_filter.h
rename to src/core/ext/filters/max_age/max_age_filter.h
index 93e357a88e6832ed0c07ac4ba44990026e7331e4..ed2015297a7294bf8c26f5588494e2493f1293f0 100644
--- a/src/core/lib/channel/max_age_filter.h
+++ b/src/core/ext/filters/max_age/max_age_filter.h
@@ -29,11 +29,11 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
 
-#ifndef GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H
-#define GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H
+#ifndef GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H
 
 #include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_max_age_filter;
 
-#endif /* GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H */
diff --git a/src/core/ext/transport/chttp2/client/chttp2_connector.c b/src/core/ext/transport/chttp2/client/chttp2_connector.c
index 2b226c1bf7e059e856fcc4e9145e5f332baec2e8..e645eda7e3e35c7c50a6b37b15ea6acffc0bb465 100644
--- a/src/core/ext/transport/chttp2/client/chttp2_connector.c
+++ b/src/core/ext/transport/chttp2/client/chttp2_connector.c
@@ -41,9 +41,9 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/connector.h"
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/handshaker.h"
diff --git a/src/core/ext/transport/chttp2/client/chttp2_connector.h b/src/core/ext/transport/chttp2/client/chttp2_connector.h
index f5d10254320e4f2a1d7fd70f79efa8f2aabfddc8..d55f6ed669a65c2452d34bdba7c3216556212ebd 100644
--- a/src/core/ext/transport/chttp2/client/chttp2_connector.h
+++ b/src/core/ext/transport/chttp2/client/chttp2_connector.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_CLIENT_CHTTP2_CONNECTOR_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_CLIENT_CHTTP2_CONNECTOR_H
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 
 grpc_connector* grpc_chttp2_connector_create();
 
diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.c b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
index 067ac35a5ac7dbed462fab2b6f52a55a60dc127c..9c8505ddfa97e3b9de8f1515847d412cf9d42cf9 100644
--- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c
+++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
@@ -38,8 +38,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/ext/transport/chttp2/client/chttp2_connector.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/surface/api_trace.h"
diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
index f0c241d68ee315cb3abc32a0a4f0ac867bcbb351..119adfade16c6e6286b80c8dc6892ddc91a55fd7 100644
--- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
+++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
@@ -38,9 +38,9 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/ext/transport/chttp2/client/chttp2_connector.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/lib/channel/channel_args.c b/src/core/lib/channel/channel_args.c
index 1a099ac437a19abcc89dee19bf67309af9a8a2ea..a6d124c7199ffc2ec0c163219bae56919483568a 100644
--- a/src/core/lib/channel/channel_args.c
+++ b/src/core/lib/channel/channel_args.c
@@ -346,3 +346,10 @@ int grpc_channel_arg_get_integer(grpc_arg *arg, grpc_integer_options options) {
   }
   return arg->value.integer;
 }
+
+bool grpc_channel_args_want_minimal_stack(const grpc_channel_args *args) {
+  const grpc_arg *arg = grpc_channel_args_find(args, GRPC_ARG_MINIMAL_STACK);
+  if (arg == NULL) return false;
+  if (arg->type == GRPC_ARG_INTEGER && arg->value.integer == 0) return false;
+  return true;
+}
diff --git a/src/core/lib/channel/channel_args.h b/src/core/lib/channel/channel_args.h
index 5c7d31f8bba0306ab841bc68ea7db81790ff0f3e..158cda5b214695814e2640249f5b67b6a41de21e 100644
--- a/src/core/lib/channel/channel_args.h
+++ b/src/core/lib/channel/channel_args.h
@@ -113,6 +113,8 @@ grpc_channel_args *grpc_channel_args_set_socket_mutator(
 const grpc_arg *grpc_channel_args_find(const grpc_channel_args *args,
                                        const char *name);
 
+bool grpc_channel_args_want_minimal_stack(const grpc_channel_args *args);
+
 typedef struct grpc_integer_options {
   int default_value;  // Return this if value is outside of expected bounds.
   int min_value;
diff --git a/src/core/lib/surface/init.c b/src/core/lib/surface/init.c
index b46ecac18d9cac7d7d2974a83a082e21b260de53..91bd014a0e5c6f0a8928466775ae91ef21e616d6 100644
--- a/src/core/lib/surface/init.c
+++ b/src/core/lib/surface/init.c
@@ -47,7 +47,6 @@
 #include "src/core/lib/channel/handshaker_registry.h"
 #include "src/core/lib/channel/http_client_filter.h"
 #include "src/core/lib/channel/http_server_filter.h"
-#include "src/core/lib/channel/max_age_filter.h"
 #include "src/core/lib/channel/message_size_filter.h"
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/http/parser.h"
@@ -114,9 +113,6 @@ static void register_builtin_channel_init() {
   grpc_channel_init_register_stage(
       GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, prepend_filter,
       (void *)&grpc_server_deadline_filter);
-  grpc_channel_init_register_stage(
-      GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, prepend_filter,
-      (void *)&grpc_max_age_filter);
   grpc_channel_init_register_stage(
       GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY,
       prepend_filter, (void *)&grpc_message_size_filter);
diff --git a/src/core/plugin_registry/grpc_plugin_registry.c b/src/core/plugin_registry/grpc_plugin_registry.c
index 596e3b7114fe9274833cfe68547b2a945f07b01e..803a26b7534bd31d79fcbcc70c74996e15d8a134 100644
--- a/src/core/plugin_registry/grpc_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_plugin_registry.c
@@ -53,6 +53,8 @@ extern void grpc_load_reporting_plugin_init(void);
 extern void grpc_load_reporting_plugin_shutdown(void);
 extern void census_grpc_plugin_init(void);
 extern void census_grpc_plugin_shutdown(void);
+extern void grpc_max_age_filter_init(void);
+extern void grpc_max_age_filter_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_chttp2_plugin_init,
@@ -75,4 +77,6 @@ void grpc_register_built_in_plugins(void) {
                        grpc_load_reporting_plugin_shutdown);
   grpc_register_plugin(census_grpc_plugin_init,
                        census_grpc_plugin_shutdown);
+  grpc_register_plugin(grpc_max_age_filter_init,
+                       grpc_max_age_filter_shutdown);
 }
diff --git a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
index a05ebcb3af2cb191c381169a8760a5ea163c145c..e65fc2425d928280ccea77126453d0ec7c45228e 100644
--- a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
@@ -53,6 +53,8 @@ extern void grpc_lb_policy_round_robin_init(void);
 extern void grpc_lb_policy_round_robin_shutdown(void);
 extern void census_grpc_plugin_init(void);
 extern void census_grpc_plugin_shutdown(void);
+extern void grpc_max_age_filter_init(void);
+extern void grpc_max_age_filter_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_chttp2_plugin_init,
@@ -75,4 +77,6 @@ void grpc_register_built_in_plugins(void) {
                        grpc_lb_policy_round_robin_shutdown);
   grpc_register_plugin(census_grpc_plugin_init,
                        census_grpc_plugin_shutdown);
+  grpc_register_plugin(grpc_max_age_filter_init,
+                       grpc_max_age_filter_shutdown);
 }
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index ed8793b019f75420931fe69942f15caf8621cd04..3bcbe667e2cfbc0bb4c275dc927cc380c8f297fa 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -88,7 +88,6 @@ CORE_SOURCE_FILES = [
   'src/core/lib/channel/handshaker_registry.c',
   'src/core/lib/channel/http_client_filter.c',
   'src/core/lib/channel/http_server_filter.c',
-  'src/core/lib/channel/max_age_filter.c',
   'src/core/lib/channel/message_size_filter.c',
   'src/core/lib/compression/compression.c',
   'src/core/lib/compression/message_compress.c',
@@ -253,47 +252,47 @@ CORE_SOURCE_FILES = [
   'src/core/tsi/transport_security.c',
   'src/core/ext/transport/chttp2/server/chttp2_server.c',
   'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-  'src/core/ext/client_channel/channel_connectivity.c',
-  'src/core/ext/client_channel/client_channel.c',
-  'src/core/ext/client_channel/client_channel_factory.c',
-  'src/core/ext/client_channel/client_channel_plugin.c',
-  'src/core/ext/client_channel/connector.c',
-  'src/core/ext/client_channel/http_connect_handshaker.c',
-  'src/core/ext/client_channel/http_proxy.c',
-  'src/core/ext/client_channel/lb_policy.c',
-  'src/core/ext/client_channel/lb_policy_factory.c',
-  'src/core/ext/client_channel/lb_policy_registry.c',
-  'src/core/ext/client_channel/parse_address.c',
-  'src/core/ext/client_channel/proxy_mapper.c',
-  'src/core/ext/client_channel/proxy_mapper_registry.c',
-  'src/core/ext/client_channel/resolver.c',
-  'src/core/ext/client_channel/resolver_factory.c',
-  'src/core/ext/client_channel/resolver_registry.c',
-  'src/core/ext/client_channel/retry_throttle.c',
-  'src/core/ext/client_channel/subchannel.c',
-  'src/core/ext/client_channel/subchannel_index.c',
-  'src/core/ext/client_channel/uri_parser.c',
+  'src/core/ext/filters/client_channel/channel_connectivity.c',
+  'src/core/ext/filters/client_channel/client_channel.c',
+  'src/core/ext/filters/client_channel/client_channel_factory.c',
+  'src/core/ext/filters/client_channel/client_channel_plugin.c',
+  'src/core/ext/filters/client_channel/connector.c',
+  'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+  'src/core/ext/filters/client_channel/http_proxy.c',
+  'src/core/ext/filters/client_channel/lb_policy.c',
+  'src/core/ext/filters/client_channel/lb_policy_factory.c',
+  'src/core/ext/filters/client_channel/lb_policy_registry.c',
+  'src/core/ext/filters/client_channel/parse_address.c',
+  'src/core/ext/filters/client_channel/proxy_mapper.c',
+  'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+  'src/core/ext/filters/client_channel/resolver.c',
+  'src/core/ext/filters/client_channel/resolver_factory.c',
+  'src/core/ext/filters/client_channel/resolver_registry.c',
+  'src/core/ext/filters/client_channel/retry_throttle.c',
+  'src/core/ext/filters/client_channel/subchannel.c',
+  'src/core/ext/filters/client_channel/subchannel_index.c',
+  'src/core/ext/filters/client_channel/uri_parser.c',
   'src/core/ext/transport/chttp2/client/chttp2_connector.c',
   'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
   'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
   'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
   'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-  'src/core/ext/lb_policy/grpclb/grpclb.c',
-  'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-  'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
   'third_party/nanopb/pb_common.c',
   'third_party/nanopb/pb_decode.c',
   'third_party/nanopb/pb_encode.c',
-  'src/core/ext/lb_policy/pick_first/pick_first.c',
-  'src/core/ext/lb_policy/round_robin/round_robin.c',
-  'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-  'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-  'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-  'src/core/ext/resolver/dns/native/dns_resolver.c',
-  'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-  'src/core/ext/load_reporting/load_reporting.c',
-  'src/core/ext/load_reporting/load_reporting_filter.c',
+  'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+  'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+  'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+  'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+  'src/core/ext/filters/load_reporting/load_reporting.c',
+  'src/core/ext/filters/load_reporting/load_reporting_filter.c',
   'src/core/ext/census/base_resources.c',
   'src/core/ext/census/context.c',
   'src/core/ext/census/gen/census.pb.c',
@@ -308,6 +307,7 @@ CORE_SOURCE_FILES = [
   'src/core/ext/census/resource.c',
   'src/core/ext/census/trace_context.c',
   'src/core/ext/census/tracing.c',
+  'src/core/ext/filters/max_age/max_age_filter.c',
   'src/core/plugin_registry/grpc_plugin_registry.c',
   'src/boringssl/err_data.c',
   'third_party/boringssl/crypto/aes/aes.c',
diff --git a/test/core/client_channel/lb_policies_test.c b/test/core/client_channel/lb_policies_test.c
index 057b90ec84f57659acdec5d781bd69301b70dce3..e03492f80e64979f9085256658b9fbe11bd403c8 100644
--- a/test/core/client_channel/lb_policies_test.c
+++ b/test/core/client_channel/lb_policies_test.c
@@ -41,8 +41,8 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/support/string.h"
diff --git a/test/core/client_channel/parse_address_test.c b/test/core/client_channel/parse_address_test.c
index 37dd0fba52c957055dd82e37425124e107d62a9a..629cdb001f9d393ee6f79854dba65a02221daee7 100644
--- a/test/core/client_channel/parse_address_test.c
+++ b/test/core/client_channel/parse_address_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 
 #include <string.h>
diff --git a/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c b/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
index 8449afcbbe6059091ab6f225ca30dc7e8d2bb2a0..8e15faa1dd8d0e1ea09a7b7fc714e3ff73e9f5db 100644
--- a/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
+++ b/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
@@ -36,8 +36,8 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/resolver.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/test/core/client_channel/resolvers/dns_resolver_test.c b/test/core/client_channel/resolvers/dns_resolver_test.c
index 919a85d58f83fc833115f52cdaa8b03a9b889512..fa7857d41809ffeea2b2e428426e795286a9eb92 100644
--- a/test/core/client_channel/resolvers/dns_resolver_test.c
+++ b/test/core/client_channel/resolvers/dns_resolver_test.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/client_channel/resolvers/sockaddr_resolver_test.c b/test/core/client_channel/resolvers/sockaddr_resolver_test.c
index bc4f02c33942e424cf9784069b774e6659116d62..847eabae3be73333f8956e8552998cc6a14b9639 100644
--- a/test/core/client_channel/resolvers/sockaddr_resolver_test.c
+++ b/test/core/client_channel/resolvers/sockaddr_resolver_test.c
@@ -37,7 +37,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 
diff --git a/test/core/client_channel/uri_fuzzer_test.c b/test/core/client_channel/uri_fuzzer_test.c
index baadd4fc652b0e8d33e2ca7e4496c1a72d49d54c..51da7f9988844b24e2f1bb5231ce4d4f58a99277 100644
--- a/test/core/client_channel/uri_fuzzer_test.c
+++ b/test/core/client_channel/uri_fuzzer_test.c
@@ -37,7 +37,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
 bool squelch = true;
diff --git a/test/core/client_channel/uri_parser_test.c b/test/core/client_channel/uri_parser_test.c
index 8a127f72eb7f567b02ca4199406d80b87686e231..9fd0dd07f0422ea2bfc57727daea3d7931bb02cf 100644
--- a/test/core/client_channel/uri_parser_test.c
+++ b/test/core/client_channel/uri_parser_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 
 #include <string.h>
 
diff --git a/test/core/end2end/fake_resolver.c b/test/core/end2end/fake_resolver.c
index 8a37531449e882dd7738f94e43839eec6d41866b..1c7dd1339c1ac273f98da15417f2c4b5ec9be05f 100644
--- a/test/core/end2end/fake_resolver.c
+++ b/test/core/end2end/fake_resolver.c
@@ -42,9 +42,9 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/unix_sockets_posix.h"
diff --git a/test/core/end2end/fixtures/h2_census.c b/test/core/end2end/fixtures/h2_census.c
index 8e60123ed6e5ebb5c67cb3088587e279e410c00d..97b27b2496a50770ed1ed92f263ca5c86c5f7820 100644
--- a/test/core/end2end/fixtures/h2_census.c
+++ b/test/core/end2end/fixtures/h2_census.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_compress.c b/test/core/end2end/fixtures/h2_compress.c
index c01e45664bb3300945ec0abe75a2a21f6176cd48..8aec94d601907bf6b72157ecdb36fb3e001174f9 100644
--- a/test/core/end2end/fixtures/h2_compress.c
+++ b/test/core/end2end/fixtures/h2_compress.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_full+pipe.c b/test/core/end2end/fixtures/h2_full+pipe.c
index c6013f3040048eac4c2a389d75bc3c08a7c8e3ac..0191e59fc83a8debeaa6bde51e84eccf1e7b5d25 100644
--- a/test/core/end2end/fixtures/h2_full+pipe.c
+++ b/test/core/end2end/fixtures/h2_full+pipe.c
@@ -46,7 +46,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_full+trace.c b/test/core/end2end/fixtures/h2_full+trace.c
index 01316376e03aeef7e82f39a4d5b794a4ded68380..9dbb27fc4b882ac006b0812cbb7fffc44f510d1e 100644
--- a/test/core/end2end/fixtures/h2_full+trace.c
+++ b/test/core/end2end/fixtures/h2_full+trace.c
@@ -46,7 +46,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_full.c b/test/core/end2end/fixtures/h2_full.c
index 3399f1981e44600105779a5d36cb374dc1d9d068..49c62b342987a1eacbead929a4e6d06519b108fd 100644
--- a/test/core/end2end/fixtures/h2_full.c
+++ b/test/core/end2end/fixtures/h2_full.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_http_proxy.c b/test/core/end2end/fixtures/h2_http_proxy.c
index 55c65fa70efe9efc82c2d52f0c3f7d7d6f036800..62c435557d72968ac0ebd3619623fc739b62a154 100644
--- a/test/core/end2end/fixtures/h2_http_proxy.c
+++ b/test/core/end2end/fixtures/h2_http_proxy.c
@@ -42,7 +42,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_load_reporting.c b/test/core/end2end/fixtures/h2_load_reporting.c
index 38321f34db73e77145992ab5d5e805be031d0dec..79f26ed2bc688481d9347388ffa85fb66a9ea49d 100644
--- a/test/core/end2end/fixtures/h2_load_reporting.c
+++ b/test/core/end2end/fixtures/h2_load_reporting.c
@@ -41,8 +41,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_proxy.c b/test/core/end2end/fixtures/h2_proxy.c
index 9e37ed4db34382bb891cd57b31779dcbc6e1225f..a10738fa0b4d84dd52127d6cffd45045fa8dd572 100644
--- a/test/core/end2end/fixtures/h2_proxy.c
+++ b/test/core/end2end/fixtures/h2_proxy.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair+trace.c b/test/core/end2end/fixtures/h2_sockpair+trace.c
index edf42a407026c5146edb5c3b54b89c7026c3d6af..5ace922f058135d34013148527a4b63920b808c8 100644
--- a/test/core/end2end/fixtures/h2_sockpair+trace.c
+++ b/test/core/end2end/fixtures/h2_sockpair+trace.c
@@ -45,7 +45,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair.c b/test/core/end2end/fixtures/h2_sockpair.c
index 94b2623b3ea00b179b597fcebf3e643bec71327e..3079a42dcebe4f3a3e851316dcf045d8ac6e5908 100644
--- a/test/core/end2end/fixtures/h2_sockpair.c
+++ b/test/core/end2end/fixtures/h2_sockpair.c
@@ -40,7 +40,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair_1byte.c b/test/core/end2end/fixtures/h2_sockpair_1byte.c
index 6f9cf8fe26a92e36dee4e22c5db3eea06337c0c7..70410d75f4cc3a3ddc7bc1ee979b164413bdabd3 100644
--- a/test/core/end2end/fixtures/h2_sockpair_1byte.c
+++ b/test/core/end2end/fixtures/h2_sockpair_1byte.c
@@ -40,7 +40,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_uds.c b/test/core/end2end/fixtures/h2_uds.c
index bc973ea8e3c9da818d59f8611e4660d6a8244280..7bde69d82a4320d76e5e47157fea0fdd40f18acc 100644
--- a/test/core/end2end/fixtures/h2_uds.c
+++ b/test/core/end2end/fixtures/h2_uds.c
@@ -44,7 +44,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/tests/load_reporting_hook.c b/test/core/end2end/tests/load_reporting_hook.c
index d1ee26fe50272ca79bc06509823ac8ccbfebf046..fd3d9163d0559dbe7b24177be6c9284c8b91c82c 100644
--- a/test/core/end2end/tests/load_reporting_hook.c
+++ b/test/core/end2end/tests/load_reporting_hook.c
@@ -41,8 +41,8 @@
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/transport/static_metadata.h"
 
diff --git a/test/core/nanopb/fuzzer_response.c b/test/core/nanopb/fuzzer_response.c
index 202c120c670fe2417f4dc9f1e34ceec3678359ba..35c0efe90d930da430facc65aa070f6560437fe7 100644
--- a/test/core/nanopb/fuzzer_response.c
+++ b/test/core/nanopb/fuzzer_response.c
@@ -36,7 +36,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 
 bool squelch = true;
 bool leak_check = true;
diff --git a/test/core/nanopb/fuzzer_serverlist.c b/test/core/nanopb/fuzzer_serverlist.c
index b225ae0d519b63640beb97ea1042f9c71c58590b..e1df401968de3588f6de6e766e3a90fc9bd4d6e3 100644
--- a/test/core/nanopb/fuzzer_serverlist.c
+++ b/test/core/nanopb/fuzzer_serverlist.c
@@ -36,7 +36,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 
 bool squelch = true;
 bool leak_check = true;
diff --git a/test/core/surface/channel_create_test.c b/test/core/surface/channel_create_test.c
index 654e5324d980aa376a074913f755b3937f0cd2ad..21bf6a0b7d55b9f2f90ac8d8a0ef42eed4eff81d 100644
--- a/test/core/surface/channel_create_test.c
+++ b/test/core/surface/channel_create_test.c
@@ -36,7 +36,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/surface/channel.h"
 #include "test/core/util/test_config.h"
diff --git a/test/core/surface/secure_channel_create_test.c b/test/core/surface/secure_channel_create_test.c
index 567f8ae16e0366a6d1d539a8d43ef06914dd00e0..adb956cd8b5fb6f2795e56ee90bd7704a1ec6ea9 100644
--- a/test/core/surface/secure_channel_create_test.c
+++ b/test/core/surface/secure_channel_create_test.c
@@ -36,7 +36,7 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 #include <grpc/support/log.h>
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/security/credentials/fake/fake_credentials.h"
 #include "src/core/lib/security/transport/security_connector.h"
 #include "src/core/lib/surface/channel.h"
diff --git a/test/core/util/debugger_macros.c b/test/core/util/debugger_macros.c
index de6a2f38a777c9626e6541240e55a3b59824c28a..af61d933ddbc93aa7bfc01c6798c4121bc44a3e7 100644
--- a/test/core/util/debugger_macros.c
+++ b/test/core/util/debugger_macros.c
@@ -39,7 +39,7 @@
 
 #include <stdio.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/internal.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/surface/call.h"
diff --git a/test/cpp/grpclb/grpclb_api_test.cc b/test/cpp/grpclb/grpclb_api_test.cc
index 82ccf436f828da0bdffd1264e35223464407c25d..d9df2bb6735b6a4767d3fd899cd70f337f53f4b8 100644
--- a/test/cpp/grpclb/grpclb_api_test.cc
+++ b/test/cpp/grpclb/grpclb_api_test.cc
@@ -34,7 +34,7 @@
 #include <grpc++/impl/codegen/config.h>
 #include <gtest/gtest.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/proto/grpc/lb/v1/load_balancer.pb.h"  // C++ version
diff --git a/test/cpp/grpclb/grpclb_test.cc b/test/cpp/grpclb/grpclb_test.cc
index 89ed9249adce77b4e15eb1a3cc4a65d257f2a978..eb3e5b644d79556d8d7be8170a7f787eb12ec626 100644
--- a/test/cpp/grpclb/grpclb_test.cc
+++ b/test/cpp/grpclb/grpclb_test.cc
@@ -51,7 +51,7 @@
 
 #include <grpc++/impl/codegen/config.h>
 extern "C" {
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/sockaddr.h"
diff --git a/test/cpp/microbenchmarks/bm_call_create.cc b/test/cpp/microbenchmarks/bm_call_create.cc
index 0a8c0ec4863ed7cdf580f1622f71cb19088647d8..cc37f0c9e9b17e873ec2770dabdb12127e0448f6 100644
--- a/test/cpp/microbenchmarks/bm_call_create.cc
+++ b/test/cpp/microbenchmarks/bm_call_create.cc
@@ -45,8 +45,8 @@
 #include <grpc/support/string_util.h>
 
 extern "C" {
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/tools/codegen/core/gen_nano_proto.sh b/tools/codegen/core/gen_nano_proto.sh
index 8600573e1cbdc0839947c8659b16d84e64cdbe1b..7bb9fc1cc4846a1d4ece952248f2ad67024e1ab0 100755
--- a/tools/codegen/core/gen_nano_proto.sh
+++ b/tools/codegen/core/gen_nano_proto.sh
@@ -32,8 +32,8 @@
 # Example usage:
 #   tools/codegen/core/gen_nano_proto.sh \
 #     src/proto/grpc/lb/v1/load_balancer.proto \
-#     $PWD/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1 \
-#     src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1
+#     $PWD/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1 \
+#     src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1
 #
 # Exit statuses:
 # 1: Incorrect number of arguments
diff --git a/tools/distrib/check_copyright.py b/tools/distrib/check_copyright.py
index 710e8709e9972ab3c6c4c6f31e02649983c44248..42005e3bd3a9f171439153fa5808274352901ae0 100755
--- a/tools/distrib/check_copyright.py
+++ b/tools/distrib/check_copyright.py
@@ -104,8 +104,8 @@ _EXEMPT = frozenset((
   'examples/python/route_guide/route_guide_pb2.py',
   'examples/python/route_guide/route_guide_pb2_grpc.py',
 
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
   'src/cpp/server/health/health.pb.h',
   'src/cpp/server/health/health.pb.c',
 
diff --git a/tools/distrib/check_include_guards.py b/tools/distrib/check_include_guards.py
index 28312813f65774aeacb34d7b78c5fa2f6de6df74..c7c267836d4d90da50c4967d77f2a031e27c9a1d 100755
--- a/tools/distrib/check_include_guards.py
+++ b/tools/distrib/check_include_guards.py
@@ -171,7 +171,7 @@ argp.add_argument('--precommit',
 args = argp.parse_args()
 
 KNOWN_BAD = set([
-    'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+    'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
     'include/grpc++/ext/reflection.grpc.pb.h',
     'include/grpc++/ext/reflection.pb.h',
 ])
diff --git a/tools/distrib/check_nanopb_output.sh b/tools/distrib/check_nanopb_output.sh
index eb64e23daf760dc5b93603d6208a3e3bc86d162a..ba5028220743bf802898f36abc9a966b0a4610be 100755
--- a/tools/distrib/check_nanopb_output.sh
+++ b/tools/distrib/check_nanopb_output.sh
@@ -58,7 +58,7 @@ popd
 #
 # Checks for load_balancer.proto
 #
-readonly LOAD_BALANCER_GRPC_OUTPUT_PATH='src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1'
+readonly LOAD_BALANCER_GRPC_OUTPUT_PATH='src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1'
 # nanopb-compile the proto to a temp location
 ./tools/codegen/core/gen_nano_proto.sh \
   src/proto/grpc/lb/v1/load_balancer.proto \
@@ -66,7 +66,7 @@ readonly LOAD_BALANCER_GRPC_OUTPUT_PATH='src/core/ext/lb_policy/grpclb/proto/grp
   "$LOAD_BALANCER_GRPC_OUTPUT_PATH"
 
 # compare outputs to checked compiled code
-if ! diff -r $NANOPB_TMP_OUTPUT src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1; then
+if ! diff -r $NANOPB_TMP_OUTPUT src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1; then
   echo "Outputs differ: $NANOPB_TMP_OUTPUT vs $LOAD_BALANCER_GRPC_OUTPUT_PATH"
   exit 2
 fi
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 6d171e3299c2af3f0fe921c8a8793b1357fd99e6..209d5445dbc7c1d6052fd470c269e71129d39bec 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -923,8 +923,6 @@ src/core/lib/channel/http_client_filter.c \
 src/core/lib/channel/http_client_filter.h \
 src/core/lib/channel/http_server_filter.c \
 src/core/lib/channel/http_server_filter.h \
-src/core/lib/channel/max_age_filter.c \
-src/core/lib/channel/max_age_filter.h \
 src/core/lib/channel/message_size_filter.c \
 src/core/lib/channel/message_size_filter.h \
 src/core/lib/compression/algorithm_metadata.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index a9343499e76b348117767fd05bc6df32f8aa9aec..6903a0e5d5ac4dc60b237918c70b7b4a37c20436 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -895,69 +895,71 @@ src/core/ext/census/trace_status.h \
 src/core/ext/census/trace_string.h \
 src/core/ext/census/tracing.c \
 src/core/ext/census/tracing.h \
-src/core/ext/client_channel/README.md \
-src/core/ext/client_channel/channel_connectivity.c \
-src/core/ext/client_channel/client_channel.c \
-src/core/ext/client_channel/client_channel.h \
-src/core/ext/client_channel/client_channel_factory.c \
-src/core/ext/client_channel/client_channel_factory.h \
-src/core/ext/client_channel/client_channel_plugin.c \
-src/core/ext/client_channel/connector.c \
-src/core/ext/client_channel/connector.h \
-src/core/ext/client_channel/http_connect_handshaker.c \
-src/core/ext/client_channel/http_connect_handshaker.h \
-src/core/ext/client_channel/http_proxy.c \
-src/core/ext/client_channel/http_proxy.h \
-src/core/ext/client_channel/lb_policy.c \
-src/core/ext/client_channel/lb_policy.h \
-src/core/ext/client_channel/lb_policy_factory.c \
-src/core/ext/client_channel/lb_policy_factory.h \
-src/core/ext/client_channel/lb_policy_registry.c \
-src/core/ext/client_channel/lb_policy_registry.h \
-src/core/ext/client_channel/parse_address.c \
-src/core/ext/client_channel/parse_address.h \
-src/core/ext/client_channel/proxy_mapper.c \
-src/core/ext/client_channel/proxy_mapper.h \
-src/core/ext/client_channel/proxy_mapper_registry.c \
-src/core/ext/client_channel/proxy_mapper_registry.h \
-src/core/ext/client_channel/resolver.c \
-src/core/ext/client_channel/resolver.h \
-src/core/ext/client_channel/resolver_factory.c \
-src/core/ext/client_channel/resolver_factory.h \
-src/core/ext/client_channel/resolver_registry.c \
-src/core/ext/client_channel/resolver_registry.h \
-src/core/ext/client_channel/retry_throttle.c \
-src/core/ext/client_channel/retry_throttle.h \
-src/core/ext/client_channel/subchannel.c \
-src/core/ext/client_channel/subchannel.h \
-src/core/ext/client_channel/subchannel_index.c \
-src/core/ext/client_channel/subchannel_index.h \
-src/core/ext/client_channel/uri_parser.c \
-src/core/ext/client_channel/uri_parser.h \
-src/core/ext/lb_policy/grpclb/grpclb.c \
-src/core/ext/lb_policy/grpclb/grpclb.h \
-src/core/ext/lb_policy/grpclb/grpclb_channel.h \
-src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-src/core/ext/lb_policy/grpclb/load_balancer_api.h \
-src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
-src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h \
-src/core/ext/lb_policy/pick_first/pick_first.c \
-src/core/ext/lb_policy/round_robin/round_robin.c \
-src/core/ext/load_reporting/load_reporting.c \
-src/core/ext/load_reporting/load_reporting.h \
-src/core/ext/load_reporting/load_reporting_filter.c \
-src/core/ext/load_reporting/load_reporting_filter.h \
-src/core/ext/resolver/README.md \
-src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h \
-src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h \
-src/core/ext/resolver/dns/native/README.md \
-src/core/ext/resolver/dns/native/dns_resolver.c \
-src/core/ext/resolver/sockaddr/README.md \
-src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
+src/core/ext/filters/client_channel/README.md \
+src/core/ext/filters/client_channel/channel_connectivity.c \
+src/core/ext/filters/client_channel/client_channel.c \
+src/core/ext/filters/client_channel/client_channel.h \
+src/core/ext/filters/client_channel/client_channel_factory.c \
+src/core/ext/filters/client_channel/client_channel_factory.h \
+src/core/ext/filters/client_channel/client_channel_plugin.c \
+src/core/ext/filters/client_channel/connector.c \
+src/core/ext/filters/client_channel/connector.h \
+src/core/ext/filters/client_channel/http_connect_handshaker.c \
+src/core/ext/filters/client_channel/http_connect_handshaker.h \
+src/core/ext/filters/client_channel/http_proxy.c \
+src/core/ext/filters/client_channel/http_proxy.h \
+src/core/ext/filters/client_channel/lb_policy.c \
+src/core/ext/filters/client_channel/lb_policy.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h \
+src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+src/core/ext/filters/client_channel/lb_policy_factory.c \
+src/core/ext/filters/client_channel/lb_policy_factory.h \
+src/core/ext/filters/client_channel/lb_policy_registry.c \
+src/core/ext/filters/client_channel/lb_policy_registry.h \
+src/core/ext/filters/client_channel/parse_address.c \
+src/core/ext/filters/client_channel/parse_address.h \
+src/core/ext/filters/client_channel/proxy_mapper.c \
+src/core/ext/filters/client_channel/proxy_mapper.h \
+src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+src/core/ext/filters/client_channel/proxy_mapper_registry.h \
+src/core/ext/filters/client_channel/resolver.c \
+src/core/ext/filters/client_channel/resolver.h \
+src/core/ext/filters/client_channel/resolver/README.md \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h \
+src/core/ext/filters/client_channel/resolver/dns/native/README.md \
+src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+src/core/ext/filters/client_channel/resolver/sockaddr/README.md \
+src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+src/core/ext/filters/client_channel/resolver_factory.c \
+src/core/ext/filters/client_channel/resolver_factory.h \
+src/core/ext/filters/client_channel/resolver_registry.c \
+src/core/ext/filters/client_channel/resolver_registry.h \
+src/core/ext/filters/client_channel/retry_throttle.c \
+src/core/ext/filters/client_channel/retry_throttle.h \
+src/core/ext/filters/client_channel/subchannel.c \
+src/core/ext/filters/client_channel/subchannel.h \
+src/core/ext/filters/client_channel/subchannel_index.c \
+src/core/ext/filters/client_channel/subchannel_index.h \
+src/core/ext/filters/client_channel/uri_parser.c \
+src/core/ext/filters/client_channel/uri_parser.h \
+src/core/ext/filters/load_reporting/load_reporting.c \
+src/core/ext/filters/load_reporting/load_reporting.h \
+src/core/ext/filters/load_reporting/load_reporting_filter.c \
+src/core/ext/filters/load_reporting/load_reporting_filter.h \
+src/core/ext/filters/max_age/max_age_filter.c \
+src/core/ext/filters/max_age/max_age_filter.h \
 src/core/ext/transport/README.md \
 src/core/ext/transport/chttp2/README.md \
 src/core/ext/transport/chttp2/alpn/alpn.c \
@@ -1040,8 +1042,6 @@ src/core/lib/channel/http_client_filter.c \
 src/core/lib/channel/http_client_filter.h \
 src/core/lib/channel/http_server_filter.c \
 src/core/lib/channel/http_server_filter.h \
-src/core/lib/channel/max_age_filter.c \
-src/core/lib/channel/max_age_filter.h \
 src/core/lib/channel/message_size_filter.c \
 src/core/lib/channel/message_size_filter.h \
 src/core/lib/compression/algorithm_metadata.h \
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index ce6ecfb58d25ebe3b5a75306044c78ba30281768..fa19aa53b17f1c815909b4a25be644b5fc25498d 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -5576,6 +5576,7 @@
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
+      "grpc_max_age_filter", 
       "grpc_resolver_dns_ares", 
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
@@ -5678,6 +5679,7 @@
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
+      "grpc_max_age_filter", 
       "grpc_resolver_dns_ares", 
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
@@ -7522,7 +7524,6 @@
       "src/core/lib/channel/handshaker_registry.h", 
       "src/core/lib/channel/http_client_filter.h", 
       "src/core/lib/channel/http_server_filter.h", 
-      "src/core/lib/channel/max_age_filter.h", 
       "src/core/lib/channel/message_size_filter.h", 
       "src/core/lib/compression/algorithm_metadata.h", 
       "src/core/lib/compression/message_compress.h", 
@@ -7659,8 +7660,6 @@
       "src/core/lib/channel/http_client_filter.h", 
       "src/core/lib/channel/http_server_filter.c", 
       "src/core/lib/channel/http_server_filter.h", 
-      "src/core/lib/channel/max_age_filter.c", 
-      "src/core/lib/channel/max_age_filter.h", 
       "src/core/lib/channel/message_size_filter.c", 
       "src/core/lib/channel/message_size_filter.h", 
       "src/core/lib/compression/algorithm_metadata.h", 
@@ -7882,67 +7881,67 @@
       "grpc_base"
     ], 
     "headers": [
-      "src/core/ext/client_channel/client_channel.h", 
-      "src/core/ext/client_channel/client_channel_factory.h", 
-      "src/core/ext/client_channel/connector.h", 
-      "src/core/ext/client_channel/http_connect_handshaker.h", 
-      "src/core/ext/client_channel/http_proxy.h", 
-      "src/core/ext/client_channel/lb_policy.h", 
-      "src/core/ext/client_channel/lb_policy_factory.h", 
-      "src/core/ext/client_channel/lb_policy_registry.h", 
-      "src/core/ext/client_channel/parse_address.h", 
-      "src/core/ext/client_channel/proxy_mapper.h", 
-      "src/core/ext/client_channel/proxy_mapper_registry.h", 
-      "src/core/ext/client_channel/resolver.h", 
-      "src/core/ext/client_channel/resolver_factory.h", 
-      "src/core/ext/client_channel/resolver_registry.h", 
-      "src/core/ext/client_channel/retry_throttle.h", 
-      "src/core/ext/client_channel/subchannel.h", 
-      "src/core/ext/client_channel/subchannel_index.h", 
-      "src/core/ext/client_channel/uri_parser.h"
+      "src/core/ext/filters/client_channel/client_channel.h", 
+      "src/core/ext/filters/client_channel/client_channel_factory.h", 
+      "src/core/ext/filters/client_channel/connector.h", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.h", 
+      "src/core/ext/filters/client_channel/http_proxy.h", 
+      "src/core/ext/filters/client_channel/lb_policy.h", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.h", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.h", 
+      "src/core/ext/filters/client_channel/parse_address.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.h", 
+      "src/core/ext/filters/client_channel/resolver.h", 
+      "src/core/ext/filters/client_channel/resolver_factory.h", 
+      "src/core/ext/filters/client_channel/resolver_registry.h", 
+      "src/core/ext/filters/client_channel/retry_throttle.h", 
+      "src/core/ext/filters/client_channel/subchannel.h", 
+      "src/core/ext/filters/client_channel/subchannel_index.h", 
+      "src/core/ext/filters/client_channel/uri_parser.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_client_channel", 
     "src": [
-      "src/core/ext/client_channel/channel_connectivity.c", 
-      "src/core/ext/client_channel/client_channel.c", 
-      "src/core/ext/client_channel/client_channel.h", 
-      "src/core/ext/client_channel/client_channel_factory.c", 
-      "src/core/ext/client_channel/client_channel_factory.h", 
-      "src/core/ext/client_channel/client_channel_plugin.c", 
-      "src/core/ext/client_channel/connector.c", 
-      "src/core/ext/client_channel/connector.h", 
-      "src/core/ext/client_channel/http_connect_handshaker.c", 
-      "src/core/ext/client_channel/http_connect_handshaker.h", 
-      "src/core/ext/client_channel/http_proxy.c", 
-      "src/core/ext/client_channel/http_proxy.h", 
-      "src/core/ext/client_channel/lb_policy.c", 
-      "src/core/ext/client_channel/lb_policy.h", 
-      "src/core/ext/client_channel/lb_policy_factory.c", 
-      "src/core/ext/client_channel/lb_policy_factory.h", 
-      "src/core/ext/client_channel/lb_policy_registry.c", 
-      "src/core/ext/client_channel/lb_policy_registry.h", 
-      "src/core/ext/client_channel/parse_address.c", 
-      "src/core/ext/client_channel/parse_address.h", 
-      "src/core/ext/client_channel/proxy_mapper.c", 
-      "src/core/ext/client_channel/proxy_mapper.h", 
-      "src/core/ext/client_channel/proxy_mapper_registry.c", 
-      "src/core/ext/client_channel/proxy_mapper_registry.h", 
-      "src/core/ext/client_channel/resolver.c", 
-      "src/core/ext/client_channel/resolver.h", 
-      "src/core/ext/client_channel/resolver_factory.c", 
-      "src/core/ext/client_channel/resolver_factory.h", 
-      "src/core/ext/client_channel/resolver_registry.c", 
-      "src/core/ext/client_channel/resolver_registry.h", 
-      "src/core/ext/client_channel/retry_throttle.c", 
-      "src/core/ext/client_channel/retry_throttle.h", 
-      "src/core/ext/client_channel/subchannel.c", 
-      "src/core/ext/client_channel/subchannel.h", 
-      "src/core/ext/client_channel/subchannel_index.c", 
-      "src/core/ext/client_channel/subchannel_index.h", 
-      "src/core/ext/client_channel/uri_parser.c", 
-      "src/core/ext/client_channel/uri_parser.h"
+      "src/core/ext/filters/client_channel/channel_connectivity.c", 
+      "src/core/ext/filters/client_channel/client_channel.c", 
+      "src/core/ext/filters/client_channel/client_channel.h", 
+      "src/core/ext/filters/client_channel/client_channel_factory.c", 
+      "src/core/ext/filters/client_channel/client_channel_factory.h", 
+      "src/core/ext/filters/client_channel/client_channel_plugin.c", 
+      "src/core/ext/filters/client_channel/connector.c", 
+      "src/core/ext/filters/client_channel/connector.h", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.c", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.h", 
+      "src/core/ext/filters/client_channel/http_proxy.c", 
+      "src/core/ext/filters/client_channel/http_proxy.h", 
+      "src/core/ext/filters/client_channel/lb_policy.c", 
+      "src/core/ext/filters/client_channel/lb_policy.h", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.c", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.h", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.c", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.h", 
+      "src/core/ext/filters/client_channel/parse_address.c", 
+      "src/core/ext/filters/client_channel/parse_address.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper.c", 
+      "src/core/ext/filters/client_channel/proxy_mapper.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.c", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.h", 
+      "src/core/ext/filters/client_channel/resolver.c", 
+      "src/core/ext/filters/client_channel/resolver.h", 
+      "src/core/ext/filters/client_channel/resolver_factory.c", 
+      "src/core/ext/filters/client_channel/resolver_factory.h", 
+      "src/core/ext/filters/client_channel/resolver_registry.c", 
+      "src/core/ext/filters/client_channel/resolver_registry.h", 
+      "src/core/ext/filters/client_channel/retry_throttle.c", 
+      "src/core/ext/filters/client_channel/retry_throttle.h", 
+      "src/core/ext/filters/client_channel/subchannel.c", 
+      "src/core/ext/filters/client_channel/subchannel.h", 
+      "src/core/ext/filters/client_channel/subchannel_index.c", 
+      "src/core/ext/filters/client_channel/subchannel_index.h", 
+      "src/core/ext/filters/client_channel/uri_parser.c", 
+      "src/core/ext/filters/client_channel/uri_parser.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -7985,23 +7984,23 @@
       "nanopb"
     ], 
     "headers": [
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_grpclb", 
     "src": [
-      "src/core/ext/lb_policy/grpclb/grpclb.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8015,23 +8014,23 @@
       "nanopb"
     ], 
     "headers": [
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_grpclb_secure", 
     "src": [
-      "src/core/ext/lb_policy/grpclb/grpclb.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8047,7 +8046,7 @@
     "language": "c", 
     "name": "grpc_lb_policy_pick_first", 
     "src": [
-      "src/core/ext/lb_policy/pick_first/pick_first.c"
+      "src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8063,7 +8062,7 @@
     "language": "c", 
     "name": "grpc_lb_policy_round_robin", 
     "src": [
-      "src/core/ext/lb_policy/round_robin/round_robin.c"
+      "src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8074,17 +8073,35 @@
       "grpc_base"
     ], 
     "headers": [
-      "src/core/ext/load_reporting/load_reporting.h", 
-      "src/core/ext/load_reporting/load_reporting_filter.h"
+      "src/core/ext/filters/load_reporting/load_reporting.h", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_load_reporting", 
     "src": [
-      "src/core/ext/load_reporting/load_reporting.c", 
-      "src/core/ext/load_reporting/load_reporting.h", 
-      "src/core/ext/load_reporting/load_reporting_filter.c", 
-      "src/core/ext/load_reporting/load_reporting_filter.h"
+      "src/core/ext/filters/load_reporting/load_reporting.c", 
+      "src/core/ext/filters/load_reporting/load_reporting.h", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.c", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.h"
+    ], 
+    "third_party": false, 
+    "type": "filegroup"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "grpc_base"
+    ], 
+    "headers": [
+      "src/core/ext/filters/max_age/max_age_filter.h"
+    ], 
+    "is_filegroup": true, 
+    "language": "c", 
+    "name": "grpc_max_age_filter", 
+    "src": [
+      "src/core/ext/filters/max_age/max_age_filter.c", 
+      "src/core/ext/filters/max_age/max_age_filter.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8096,18 +8113,18 @@
       "grpc_client_channel"
     ], 
     "headers": [
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_resolver_dns_ares", 
     "src": [
-      "src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8123,7 +8140,7 @@
     "language": "c", 
     "name": "grpc_resolver_dns_native", 
     "src": [
-      "src/core/ext/resolver/dns/native/dns_resolver.c"
+      "src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8139,7 +8156,7 @@
     "language": "c", 
     "name": "grpc_resolver_sockaddr", 
     "src": [
-      "src/core/ext/resolver/sockaddr/sockaddr_resolver.c"
+      "src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
index a2b3e564dad56af7bedead87db6826f60f89621f..caa22a019db270e2b66205a92d81b7c31807d0aa 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
@@ -389,7 +389,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -598,8 +597,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
index 57d4db24a190734eb356ff7938fc24fd9eaf7bde..6fc1c969309cf975e6b74ed248012082d41cf62c 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
@@ -157,9 +157,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -902,9 +899,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
index f0774aa8a72a0d95f55fe1b5d564eeee6ec79749..674818182e879a5704062be1d822a65fa997f936 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
@@ -383,7 +383,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -582,8 +581,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 2dd3d8974f9d98fd5d01f4feb9ad0ef13ed26f97..2b9a5b13c1a9fcaec79101cc432126cc4d8c9172 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
@@ -142,9 +142,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -869,9 +866,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index ada8f1a2289edd2514550f24eac75cad709e6bf7..948af2f29eed3f58339b99a2b0d7bf7bdcfd80b8 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -312,7 +312,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -455,37 +454,37 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_interface.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_common.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_decode.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\aggregation.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\base_resources.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\census_interface.h" />
@@ -502,6 +501,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_status.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_string.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\init.c">
@@ -528,8 +528,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
@@ -858,45 +856,45 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\secure\secure_channel_create.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
     </ClCompile>
@@ -908,13 +906,13 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel_secure.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel_secure.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
     </ClCompile>
@@ -922,23 +920,23 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
     </ClCompile>
@@ -968,6 +966,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_plugin_registry.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 02468451e989e55efad9aeb9acde16d8d07e0fc5..d43b0e3f83ea1979a6a5e4408b8605c8014eb84f 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -37,9 +37,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -532,65 +529,65 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\secure\secure_channel_create.c">
       <Filter>src\core\ext\transport\chttp2\client\secure</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
@@ -607,17 +604,17 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create_posix.c">
       <Filter>src\core\ext\transport\chttp2\client\insecure</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel_secure.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel_secure.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
       <Filter>third_party\nanopb</Filter>
@@ -628,32 +625,32 @@
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
       <Filter>third_party\nanopb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
-      <Filter>src\core\ext\lb_policy\pick_first</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\pick_first</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
-      <Filter>src\core\ext\lb_policy\round_robin</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\round_robin</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
-      <Filter>src\core\ext\resolver\dns\native</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\native</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
-      <Filter>src\core\ext\resolver\sockaddr</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\sockaddr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
       <Filter>src\core\ext\census</Filter>
@@ -697,6 +694,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
       <Filter>src\core\ext\census</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_plugin_registry.c">
       <Filter>src\core\plugin_registry</Filter>
     </ClCompile>
@@ -833,9 +833,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
@@ -1262,74 +1259,74 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h">
       <Filter>src\core\ext\transport\chttp2\server</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h">
       <Filter>third_party\nanopb</Filter>
@@ -1343,17 +1340,17 @@
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.h">
       <Filter>third_party\nanopb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\aggregation.h">
       <Filter>src\core\ext\census</Filter>
@@ -1403,6 +1400,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h">
       <Filter>src\core\ext\census</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClInclude>
   </ItemGroup>
 
   <ItemGroup>
@@ -1433,50 +1433,56 @@
     <Filter Include="src\core\ext\census\gen">
       <UniqueIdentifier>{4a14dd37-5868-c656-7333-fa80574cbb07}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\client_channel">
-      <UniqueIdentifier>{36eee53a-cd19-738a-c387-20c44a2bfd07}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters">
+      <UniqueIdentifier>{a7cd279d-e0ec-32d3-4cbe-778aba4a0000}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\client_channel">
+      <UniqueIdentifier>{d38c43fd-50e4-fba5-59c5-0d4817159aad}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy">
+      <UniqueIdentifier>{784368be-88aa-3170-1479-48fdf8fbc7be}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy">
-      <UniqueIdentifier>{030f00ff-6c54-76c8-12df-37e3008335d1}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb">
+      <UniqueIdentifier>{82e39ac8-1993-6894-efed-651068234a28}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb">
-      <UniqueIdentifier>{fe41339e-53fb-39b3-7457-7a0fbb238dbe}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto">
+      <UniqueIdentifier>{ff02fee6-7304-df5f-76a6-008b5a1c7d19}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto">
-      <UniqueIdentifier>{a7c27f6b-6d15-01cf-76d9-c30dddea0990}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc">
+      <UniqueIdentifier>{953a74cb-cafd-eedd-8d34-038c28daf188}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc">
-      <UniqueIdentifier>{bc714e6d-8aba-91df-7db9-7f189f05a6ff}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb">
+      <UniqueIdentifier>{595a1701-eb5a-e8af-ffa3-f67c0e380894}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb">
-      <UniqueIdentifier>{adf7e553-94ef-14fd-e845-03104f00a06f}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1">
+      <UniqueIdentifier>{af8e2597-93ef-1381-d773-082a85e7eaf1}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1">
-      <UniqueIdentifier>{bc357e2d-8ddd-a688-88a3-255228fc0818}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\pick_first">
+      <UniqueIdentifier>{9a3e8049-bc04-8341-5173-6fe5f8a4465c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\pick_first">
-      <UniqueIdentifier>{b63ded00-b24f-708e-333f-ce199e421875}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\round_robin">
+      <UniqueIdentifier>{6d3d5842-8257-9c58-7985-75f4d98b7d5c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\round_robin">
-      <UniqueIdentifier>{2472d352-cf94-f317-646e-72b769cea846}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver">
+      <UniqueIdentifier>{c9873fec-2f83-0497-6d0a-bd9c1cc63be3}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\load_reporting">
-      <UniqueIdentifier>{b6c863cd-a135-32e8-df03-02365f526f0d}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns">
+      <UniqueIdentifier>{91b79502-da45-f80b-933e-c974b089db5c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver">
-      <UniqueIdentifier>{6bfa6808-9dcb-8990-deed-5cf58a149dda}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\c_ares">
+      <UniqueIdentifier>{73d42c09-d1b5-2e4e-ef12-d74d8ee33ac2}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns">
-      <UniqueIdentifier>{e8fe6413-ab8c-48d5-2c7b-aa79e3db4ab2}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\native">
+      <UniqueIdentifier>{9b2d7e1f-b78a-2e7a-3000-944e46a5fab9}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\c_ares">
-      <UniqueIdentifier>{2b72688f-79b8-05dd-2896-c7d5dec07dd6}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\sockaddr">
+      <UniqueIdentifier>{bd317dd5-323e-5b27-4c05-d85786be36ab}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\native">
-      <UniqueIdentifier>{94e34be0-29d2-1731-3c1e-617ec4986acb}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\load_reporting">
+      <UniqueIdentifier>{12559ba7-9445-92ae-0c5a-2d79570d4c9b}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\sockaddr">
-      <UniqueIdentifier>{98c1ccc2-2c91-a3d2-6040-a2e15993d51a}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\max_age">
+      <UniqueIdentifier>{5369e83c-4625-fc14-cc40-9db5da3a7af4}</UniqueIdentifier>
     </Filter>
     <Filter Include="src\core\ext\transport">
       <UniqueIdentifier>{e3abfd0a-064e-0f2f-c8e8-7c5a7e98142a}</UniqueIdentifier>
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
index bc018dc801c63ffe8544c9a403e36de5d9270ff8..c675cda122fb30c4d69d4daba3546d9a4d4b8d4c 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
@@ -207,7 +207,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -370,8 +369,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
index 6a02b15a3a6c8388db7d02acdd0aa21c9fe004a0..c6bd2d6c9f1e45e03d311160b6b926b627186140 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
@@ -94,9 +94,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -614,9 +611,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 83e76586ac28599be9d3892265669fcfe0d34f71..8799359bb762422a36ad58ec36d2553e738f7ff2 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -302,7 +302,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -422,32 +421,32 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\alpn\alpn.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_common.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_decode.h" />
@@ -468,6 +467,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_status.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_string.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\init.c">
@@ -496,8 +496,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
@@ -778,67 +776,67 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
     </ClCompile>
@@ -846,9 +844,9 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
     </ClCompile>
@@ -878,6 +876,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_unsecure_plugin_registry.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 5e2b7c2c318e874ded4096292dd8da798fff2d1d..cf2def4ff65643c3035f417609c728735675078f 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -40,9 +40,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -463,98 +460,98 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
-      <Filter>src\core\ext\resolver\dns\native</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\native</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
-      <Filter>src\core\ext\resolver\sockaddr</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\sockaddr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
       <Filter>third_party\nanopb</Filter>
@@ -565,11 +562,11 @@
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
       <Filter>third_party\nanopb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
-      <Filter>src\core\ext\lb_policy\pick_first</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\pick_first</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
-      <Filter>src\core\ext\lb_policy\round_robin</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\round_robin</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
       <Filter>src\core\ext\census</Filter>
@@ -613,6 +610,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
       <Filter>src\core\ext\census</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_unsecure_plugin_registry.c">
       <Filter>src\core\plugin_registry</Filter>
     </ClCompile>
@@ -746,9 +746,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
@@ -1106,83 +1103,83 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h">
       <Filter>third_party\nanopb</Filter>
@@ -1244,6 +1241,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h">
       <Filter>src\core\ext\census</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClInclude>
   </ItemGroup>
 
   <ItemGroup>
@@ -1274,50 +1274,56 @@
     <Filter Include="src\core\ext\census\gen">
       <UniqueIdentifier>{dfe53168-57b0-3ac4-d8ba-07fd958cc8f5}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\client_channel">
-      <UniqueIdentifier>{2edd1aad-34cf-0c66-e03e-b1b2dd81d9a8}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters">
+      <UniqueIdentifier>{5e37012e-a374-e285-bbda-b0dbe6327663}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\client_channel">
+      <UniqueIdentifier>{bb0de45a-745e-8822-7ad5-453f9e060f8c}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy">
+      <UniqueIdentifier>{2ac0872e-12dc-0b08-68e0-66829ce8c268}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy">
-      <UniqueIdentifier>{a23781d2-27e4-7cb0-12cd-59782ecb21ce}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb">
+      <UniqueIdentifier>{6cc603b0-7272-0a9f-59c2-5561c1856a6a}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb">
-      <UniqueIdentifier>{25a465c8-d1e8-6248-c005-bb2062206472}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto">
+      <UniqueIdentifier>{0d3bc4ed-1eea-8b17-c26f-7d87c3dd2220}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto">
-      <UniqueIdentifier>{40fc2615-d244-0d36-4486-ba6f0fa468bb}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc">
+      <UniqueIdentifier>{32d37957-d122-e649-b9c1-3f13f6674479}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc">
-      <UniqueIdentifier>{1d129f24-a399-12ef-68de-023aff7dde52}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb">
+      <UniqueIdentifier>{153a159f-1ba7-aea7-ebed-4f2d9e2e7bb9}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb">
-      <UniqueIdentifier>{21858d9d-30b5-8847-5882-6b47df0fa293}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1">
+      <UniqueIdentifier>{f8747b87-02f9-df6c-0eeb-27ab1d037d0c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1">
-      <UniqueIdentifier>{e9256e96-ea3d-c1fd-6426-9d53d9f08f66}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\pick_first">
+      <UniqueIdentifier>{4df776ac-ebeb-4933-554e-749a0399ff51}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\pick_first">
-      <UniqueIdentifier>{e27f9ecf-97bb-1a2e-3135-a41f732dcf55}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\round_robin">
+      <UniqueIdentifier>{5244539b-6cec-80c7-61dc-df51e531bedd}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\round_robin">
-      <UniqueIdentifier>{e5fc1091-5d60-404f-775b-686ef4b3266f}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver">
+      <UniqueIdentifier>{663be499-ce6c-8afd-db98-674f26be1149}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\load_reporting">
-      <UniqueIdentifier>{2d6e3879-24c7-06e2-b415-40ab18a3b918}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns">
+      <UniqueIdentifier>{f6bf03da-fa0d-0c24-bba2-17dc5a3c8fe0}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver">
-      <UniqueIdentifier>{88c78e27-267a-95df-07c5-50e5fbc2f40c}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\c_ares">
+      <UniqueIdentifier>{54bc0ac2-39c8-dbfd-c5dd-b9fb597dd820}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns">
-      <UniqueIdentifier>{2e0a9b4f-6394-7c0e-6e5a-0f8b3ee29b41}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\native">
+      <UniqueIdentifier>{55f499bd-ae18-5210-81e1-385c85e60875}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\c_ares">
-      <UniqueIdentifier>{932d8afd-e042-46d0-30c5-1c45386165d9}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\sockaddr">
+      <UniqueIdentifier>{99210f5e-b2a0-ecd1-024f-fc152db68a11}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\native">
-      <UniqueIdentifier>{3d5398c8-928b-9096-8eb7-f8c40ee68c4d}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\load_reporting">
+      <UniqueIdentifier>{0aef07b4-39d2-f862-15ac-65b4bf00dabb}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\sockaddr">
-      <UniqueIdentifier>{71686ed0-fbf9-02a4-d65a-a73f7dc4e2be}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\max_age">
+      <UniqueIdentifier>{d3bc80c1-5f2d-e842-42ac-43d8a6ada8de}</UniqueIdentifier>
     </Filter>
     <Filter Include="src\core\ext\transport">
       <UniqueIdentifier>{967c89fe-c97c-27e2-aac0-9ba5854cb5fa}</UniqueIdentifier>