diff --git a/Makefile b/Makefile
index dd63fe2dcef4b99617f56a89fc1f63ef2219d6f1..c3b5c41435f7fb77176b7a9bd747b40b02cbdad6 100644
--- a/Makefile
+++ b/Makefile
@@ -1065,6 +1065,7 @@ grpc_ruby_plugin: $(BINDIR)/$(CONFIG)/grpc_ruby_plugin
 grpc_tool_test: $(BINDIR)/$(CONFIG)/grpc_tool_test
 grpclb_api_test: $(BINDIR)/$(CONFIG)/grpclb_api_test
 grpclb_test: $(BINDIR)/$(CONFIG)/grpclb_test
+http2_client: $(BINDIR)/$(CONFIG)/http2_client
 hybrid_end2end_test: $(BINDIR)/$(CONFIG)/hybrid_end2end_test
 interop_client: $(BINDIR)/$(CONFIG)/interop_client
 interop_server: $(BINDIR)/$(CONFIG)/interop_server
@@ -1240,9 +1241,9 @@ pc_cxx: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc++.pc
 pc_cxx_unsecure: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc++_unsecure.pc
 
 ifeq ($(EMBED_OPENSSL),true)
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x509_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x509_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
 else
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_proto_reflection_desc_db.a $(LIBDIR)/$(CONFIG)/libgrpc++_test.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_cli_libs.a $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_lib.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libbenchmark.a
 endif
 
 
@@ -1447,6 +1448,7 @@ buildtests_cxx: privatelibs_cxx \
   $(BINDIR)/$(CONFIG)/grpc_tool_test \
   $(BINDIR)/$(CONFIG)/grpclb_api_test \
   $(BINDIR)/$(CONFIG)/grpclb_test \
+  $(BINDIR)/$(CONFIG)/http2_client \
   $(BINDIR)/$(CONFIG)/hybrid_end2end_test \
   $(BINDIR)/$(CONFIG)/interop_client \
   $(BINDIR)/$(CONFIG)/interop_server \
@@ -1540,6 +1542,7 @@ buildtests_cxx: privatelibs_cxx \
   $(BINDIR)/$(CONFIG)/grpc_tool_test \
   $(BINDIR)/$(CONFIG)/grpclb_api_test \
   $(BINDIR)/$(CONFIG)/grpclb_test \
+  $(BINDIR)/$(CONFIG)/http2_client \
   $(BINDIR)/$(CONFIG)/hybrid_end2end_test \
   $(BINDIR)/$(CONFIG)/interop_client \
   $(BINDIR)/$(CONFIG)/interop_server \
@@ -4943,6 +4946,59 @@ ifneq ($(NO_DEPS),true)
 endif
 
 
+LIBHTTP2_CLIENT_MAIN_SRC = \
+    $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc \
+    test/cpp/interop/http2_client.cc \
+
+PUBLIC_HEADERS_CXX += \
+
+LIBHTTP2_CLIENT_MAIN_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBHTTP2_CLIENT_MAIN_SRC))))
+
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL.
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: openssl_dep_error
+
+
+else
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build a C++ library if you don't have protobuf - a bit overreached, but still okay.
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: protobuf_dep_error
+
+
+else
+
+$(LIBDIR)/$(CONFIG)/libhttp2_client_main.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(PROTOBUF_DEP) $(LIBHTTP2_CLIENT_MAIN_OBJS) 
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a
+	$(Q) $(AR) $(AROPTS) $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBHTTP2_CLIENT_MAIN_OBJS) 
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib -no_warning_for_no_symbols $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a
+endif
+
+
+
+
+endif
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBHTTP2_CLIENT_MAIN_OBJS:.o=.dep)
+endif
+endif
+$(OBJDIR)/$(CONFIG)/test/cpp/interop/http2_client.o: $(GENDIR)/src/proto/grpc/testing/empty.pb.cc $(GENDIR)/src/proto/grpc/testing/empty.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/test.pb.cc $(GENDIR)/src/proto/grpc/testing/test.grpc.pb.cc
+
+
 LIBINTEROP_CLIENT_HELPER_SRC = \
     $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
     test/cpp/interop/client_helper.cc \
@@ -12897,6 +12953,37 @@ endif
 $(OBJDIR)/$(CONFIG)/test/cpp/grpclb/grpclb_test.o: $(GENDIR)/src/proto/grpc/lb/v1/load_balancer.pb.cc $(GENDIR)/src/proto/grpc/lb/v1/load_balancer.grpc.pb.cc
 
 
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/http2_client: openssl_dep_error
+
+else
+
+
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/http2_client: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/http2_client:  $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS)  $(LIBDIR)/$(CONFIG)/libhttp2_client_main.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(LDLIBS_SECURE) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/http2_client
+
+endif
+
+endif
+
+
+
+
 HYBRID_END2END_TEST_SRC = \
     test/cpp/end2end/hybrid_end2end_test.cc \
 
@@ -16814,6 +16901,7 @@ test/core/util/test_tcp_server.c: $(OPENSSL_DEP)
 test/cpp/end2end/test_service_impl.cc: $(OPENSSL_DEP)
 test/cpp/interop/client.cc: $(OPENSSL_DEP)
 test/cpp/interop/client_helper.cc: $(OPENSSL_DEP)
+test/cpp/interop/http2_client.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_client.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_server.cc: $(OPENSSL_DEP)
 test/cpp/interop/interop_server_bootstrap.cc: $(OPENSSL_DEP)
diff --git a/README.md b/README.md
index 70cf9fcc30e2e4f00d42480adb74412d94b2a0f9..174e861f5945fd9a4bd81e14c5ca4252b59bad41 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,8 @@ See [INSTALL](INSTALL.md) for installation instructions for various platforms.
 
 See [tools/run_tests](tools/run_tests) for more guidance on how to run various test suites (e.g. unit tests, interop tests, benchmarks)
 
+See [Performance dashboard](http://performance-dot-grpc-testing.appspot.com/explore?dashboard=5712453606309888) for the performance numbers for v1.0.x.
+
 #Repository Structure & Status
 
 This repository contains source code for gRPC libraries for multiple languages written on top of shared C core library [src/core] (src/core).
diff --git a/build.yaml b/build.yaml
index 2decc76f19471cfee62c32b143c7effe45f4b744..78eb6a5a8e7b4d730ef27a486b61fb3df4e97608 100644
--- a/build.yaml
+++ b/build.yaml
@@ -1223,6 +1223,22 @@ libs:
   vs_project_guid: '{B6E81D84-2ACB-41B8-8781-493A944C7817}'
   vs_props:
   - protoc
+- name: http2_client_main
+  build: private
+  language: c++
+  headers:
+  - test/cpp/interop/http2_client.h
+  src:
+  - src/proto/grpc/testing/empty.proto
+  - src/proto/grpc/testing/messages.proto
+  - src/proto/grpc/testing/test.proto
+  - test/cpp/interop/http2_client.cc
+  deps:
+  - grpc++_test_util
+  - grpc_test_util
+  - grpc++
+  - grpc
+  - grpc++_test_config
 - name: interop_client_helper
   build: private
   language: c++
@@ -1265,6 +1281,7 @@ libs:
   src:
   - test/cpp/interop/server_helper.cc
   deps:
+  - grpc++_test_util
   - grpc_test_util
   - grpc++
   - grpc
@@ -3197,6 +3214,22 @@ targets:
   - grpc++
   - grpc++_test_util
   - grpc_test_util
+- name: http2_client
+  build: test
+  run: false
+  language: c++
+  src: []
+  deps:
+  - http2_client_main
+  - grpc++_test_util
+  - grpc_test_util
+  - grpc++
+  - grpc
+  - grpc++_test_config
+  platforms:
+  - mac
+  - linux
+  - posix
 - name: hybrid_end2end_test
   gtest: true
   build: test
diff --git a/config.m4 b/config.m4
index e5ad3cf603aad84232e7c4b6b065457ccd12d4b8..4b6e39851c478a562a20a3d5db3805bdc8a72371 100644
--- a/config.m4
+++ b/config.m4
@@ -5,9 +5,9 @@ if test "$PHP_GRPC" != "no"; then
   dnl Write more examples of tests here...
 
   dnl # --with-grpc -> add include path
-  PHP_ADD_INCLUDE(../../grpc/include)
-  PHP_ADD_INCLUDE(../../grpc/src/php/ext/grpc)
-  PHP_ADD_INCLUDE(../../grpc/third_party/boringssl/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
+  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
 
   LIBS="-lpthread $LIBS"
 
diff --git a/doc/negative-http2-interop-test-descriptions.md b/doc/negative-http2-interop-test-descriptions.md
index 5ea3a96dff108a38270ff0fb521fb7bdd7a5944b..b64fe6a024d6f06658b93cf5461e1db73d62ee89 100644
--- a/doc/negative-http2-interop-test-descriptions.md
+++ b/doc/negative-http2-interop-test-descriptions.md
@@ -49,7 +49,8 @@ server. The client should handle the goaway by switching to a new stream without
 the user application having to do a thing.
 
 Client Procedure:
- 1. Client sends two UnaryCall requests with:
+ 1. Client sends two UnaryCall requests (and sleeps for 1 second in-between).
+ TODO: resolve [9300](https://github.com/grpc/grpc/issues/9300) and remove the 1 second sleep
  
     ```
     {
@@ -61,14 +62,14 @@ Client Procedure:
     ```
 
 Client asserts:
-* Call was successful.
+* Both calls are successful.
 * Response payload body is 314159 bytes in size.
 
 Server Procedure:
   1. Server sends a GOAWAY after receiving the first UnaryCall.
 
 Server asserts:
-* The second UnaryCall has a different stream_id than the first one.
+* Two different connections were used from the client.
 
 ### rst_after_header
 
diff --git a/include/grpc/support/log_windows.h b/include/grpc/support/log_windows.h
index 12bf8cc1f5ecea5c1d88e8ce60906c34ad51c9f2..943a8e908b3eea1a4d121d148e30eec041303a3f 100644
--- a/include/grpc/support/log_windows.h
+++ b/include/grpc/support/log_windows.h
@@ -34,6 +34,8 @@
 #ifndef GRPC_SUPPORT_LOG_WINDOWS_H
 #define GRPC_SUPPORT_LOG_WINDOWS_H
 
+#include <grpc/impl/codegen/port_platform.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
diff --git a/package.json b/package.json
index 5506e9bbdf8deaba326801fb5c635bae7608ea71..6fd799cbab0971f3911cb149d4d0de01fe5da3f3 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "poisson-process": "^0.2.1"
   },
   "engines": {
-    "node": ">=0.12.0"
+    "node": ">=1.1.0"
   },
   "binary": {
     "module_name": "grpc_node",
diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/resolver/dns/native/dns_resolver.c
index 9bb1c0c22731202d7119e6de25ae2eb2486bbe9f..58fe9d39852d48c94be72825ae24fc45a295a48c 100644
--- a/src/core/ext/resolver/dns/native/dns_resolver.c
+++ b/src/core/ext/resolver/dns/native/dns_resolver.c
@@ -188,9 +188,8 @@ static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
     gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
     gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now);
     gpr_timespec timeout = gpr_time_sub(next_try, now);
-    const char *msg = grpc_error_string(error);
-    gpr_log(GPR_DEBUG, "dns resolution failed: %s", msg);
-
+    gpr_log(GPR_INFO, "dns resolution failed (will retry): %s",
+            grpc_error_string(error));
     GPR_ASSERT(!r->have_retry_timer);
     r->have_retry_timer = true;
     GRPC_RESOLVER_REF(&r->base, "retry-timer");
diff --git a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
index 583ac9e98e1dd27063f02f3ad0c86fedc02da971..7d5beed09dd040a0c0bf78bbdc7fb67142d0f18b 100644
--- a/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
+++ b/src/core/ext/transport/chttp2/transport/frame_rst_stream.c
@@ -108,7 +108,7 @@ grpc_error *grpc_chttp2_rst_stream_parser_parse(grpc_exec_ctx *exec_ctx,
                       (((uint32_t)p->reason_bytes[2]) << 8) |
                       (((uint32_t)p->reason_bytes[3]));
     grpc_error *error = GRPC_ERROR_NONE;
-    if (reason != GRPC_HTTP2_NO_ERROR) {
+    if (reason != GRPC_HTTP2_NO_ERROR || s->header_frames_received < 2) {
       error = grpc_error_set_int(GRPC_ERROR_CREATE("RST_STREAM"),
                                  GRPC_ERROR_INT_HTTP2_ERROR, (intptr_t)reason);
     }
diff --git a/src/php/ext/grpc/call.c b/src/php/ext/grpc/call.c
index 95ca6a6f3dd77b801ca0bc1ea6d9cdefe162059c..8a2070481e870cfd2f2e23e69c0be5ce8b0dfeb6 100644
--- a/src/php/ext/grpc/call.c
+++ b/src/php/ext/grpc/call.c
@@ -482,6 +482,7 @@ PHP_METHOD(Call, startBatch) {
       gpr_free(status_details_text);
       add_property_zval(result, "status", recv_status);
       PHP_GRPC_DELREF(recv_status);
+      PHP_GRPC_FREE_STD_ZVAL(recv_status);
       break;
     case GRPC_OP_RECV_CLOSE_ON_SERVER:
       add_property_bool(result, "cancelled", cancelled);
@@ -504,6 +505,7 @@ cleanup:
     }
     if (ops[i].op == GRPC_OP_RECV_MESSAGE) {
       grpc_byte_buffer_destroy(message);
+      PHP_GRPC_FREE_STD_ZVAL(message_str);
     }
   }
   RETURN_DESTROY_ZVAL(result);
diff --git a/src/php/ext/grpc/call_credentials.c b/src/php/ext/grpc/call_credentials.c
index 3aafc3a19b667d761f188cb164a7b0f1c0907076..043817facd1c288f3c1bd6a2a461a6854ecfae89 100644
--- a/src/php/ext/grpc/call_credentials.c
+++ b/src/php/ext/grpc/call_credentials.c
@@ -111,9 +111,7 @@ PHP_METHOD(CallCredentials, createComposite) {
   grpc_call_credentials *creds =
       grpc_composite_call_credentials_create(cred1->wrapped, cred2->wrapped,
                                              NULL);
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
@@ -155,9 +153,7 @@ PHP_METHOD(CallCredentials, createFromPlugin) {
 
   grpc_call_credentials *creds =
     grpc_metadata_credentials_create_from_plugin(plugin, NULL);
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_call_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
@@ -211,6 +207,8 @@ void plugin_destroy_state(void *ptr) {
   plugin_state *state = (plugin_state *)ptr;
   efree(state->fci);
   efree(state->fci_cache);
+  PHP_GRPC_FREE_STD_ZVAL(state->fci->params);
+  PHP_GRPC_FREE_STD_ZVAL(state->fci->retval);
   efree(state);
 }
 
diff --git a/src/php/ext/grpc/channel_credentials.c b/src/php/ext/grpc/channel_credentials.c
index a32c4a4ea24272059c8b05e21ed256185acdf229..36a8223b8806fe124737f3eac8c14f9e993ddc63 100644
--- a/src/php/ext/grpc/channel_credentials.c
+++ b/src/php/ext/grpc/channel_credentials.c
@@ -121,9 +121,7 @@ PHP_METHOD(ChannelCredentials, setDefaultRootsPem) {
  */
 PHP_METHOD(ChannelCredentials, createDefault) {
   grpc_channel_credentials *creds = grpc_google_default_credentials_create();
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
@@ -160,9 +158,7 @@ PHP_METHOD(ChannelCredentials, createSsl) {
   grpc_channel_credentials *creds = grpc_ssl_credentials_create(
       pem_root_certs,
       pem_key_cert_pair.private_key == NULL ? NULL : &pem_key_cert_pair, NULL);
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
@@ -191,9 +187,7 @@ PHP_METHOD(ChannelCredentials, createComposite) {
   grpc_channel_credentials *creds =
       grpc_composite_channel_credentials_create(cred1->wrapped, cred2->wrapped,
                                                 NULL);
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_channel_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
diff --git a/src/php/ext/grpc/php7_wrapper.h b/src/php/ext/grpc/php7_wrapper.h
index 1d7824113faf1be801726a73500e202607ca2669..72e982d6fc93aff101ae382dbad46b70f8c814cb 100644
--- a/src/php/ext/grpc/php7_wrapper.h
+++ b/src/php/ext/grpc/php7_wrapper.h
@@ -50,8 +50,13 @@
 
 #define PHP_GRPC_RETURN_STRING(val, dup) RETURN_STRING(val, dup)
 #define PHP_GRPC_MAKE_STD_ZVAL(pzv) MAKE_STD_ZVAL(pzv)
+#define PHP_GRPC_FREE_STD_ZVAL(pzv)
 #define PHP_GRPC_DELREF(zv) Z_DELREF_P(zv)
 
+#define RETURN_DESTROY_ZVAL(val) \
+  RETURN_ZVAL(val, false /* Don't execute copy constructor */, \
+              true /* Dealloc original before returning */)
+
 #define PHP_GRPC_WRAP_OBJECT_START(name) \
   typedef struct name { \
     zend_object std;
@@ -144,8 +149,15 @@ static inline int php_grpc_zend_hash_find(HashTable *ht, char *key, int len,
 #define PHP_GRPC_RETURN_STRING(val, dup) RETURN_STRING(val)
 #define PHP_GRPC_MAKE_STD_ZVAL(pzv) \
   pzv = (zval *)emalloc(sizeof(zval));
+#define PHP_GRPC_FREE_STD_ZVAL(pzv) efree(pzv);
 #define PHP_GRPC_DELREF(zv)
 
+#define RETURN_DESTROY_ZVAL(val) \
+  RETVAL_ZVAL(val, false /* Don't execute copy constructor */, \
+              true /* Dealloc original before returning */); \
+  efree(val); \
+  return
+
 #define PHP_GRPC_WRAP_OBJECT_START(name) \
   typedef struct name {
 #define PHP_GRPC_WRAP_OBJECT_END(name) \
diff --git a/src/php/ext/grpc/php_grpc.h b/src/php/ext/grpc/php_grpc.h
index e57a06545e6c3f3cbc83055899ceb1ed1d5f80aa..13083b0bc71cb28aadda4bb76a63cd85e1b2a31d 100644
--- a/src/php/ext/grpc/php_grpc.h
+++ b/src/php/ext/grpc/php_grpc.h
@@ -61,10 +61,6 @@ extern zend_module_entry grpc_module_entry;
 
 #include "grpc/grpc.h"
 
-#define RETURN_DESTROY_ZVAL(val)                               \
-  RETURN_ZVAL(val, false /* Don't execute copy constructor */, \
-              true /* Dealloc original before returning */)
-
 /* These are all function declarations */
 /* Code that runs at module initialization */
 PHP_MINIT_FUNCTION(grpc);
diff --git a/src/php/ext/grpc/server_credentials.c b/src/php/ext/grpc/server_credentials.c
index 1610c8ebb0982a6cdf6946289cd5e4b3a47a85d7..3e39fee246c4afe30f1e497ab57d9e2572568bac 100644
--- a/src/php/ext/grpc/server_credentials.c
+++ b/src/php/ext/grpc/server_credentials.c
@@ -113,9 +113,7 @@ PHP_METHOD(ServerCredentials, createSsl) {
   grpc_server_credentials *creds = grpc_ssl_server_credentials_create_ex(
       pem_root_certs, &pem_key_cert_pair, 1,
       GRPC_SSL_DONT_REQUEST_CLIENT_CERTIFICATE, NULL);
-  zval *creds_object;
-  PHP_GRPC_MAKE_STD_ZVAL(creds_object);
-  creds_object = grpc_php_wrap_server_credentials(creds TSRMLS_CC);
+  zval *creds_object = grpc_php_wrap_server_credentials(creds TSRMLS_CC);
   RETURN_DESTROY_ZVAL(creds_object);
 }
 
diff --git a/src/php/ext/grpc/timeval.c b/src/php/ext/grpc/timeval.c
index 945231b47feb5e26352aefa8d31c3ee9f4c9d38b..7ada915aaddbd113f01f807c9a3437af4d7619eb 100644
--- a/src/php/ext/grpc/timeval.c
+++ b/src/php/ext/grpc/timeval.c
@@ -115,11 +115,9 @@ PHP_METHOD(Timeval, add) {
   }
   wrapped_grpc_timeval *self = Z_WRAPPED_GRPC_TIMEVAL_P(getThis());
   wrapped_grpc_timeval *other = Z_WRAPPED_GRPC_TIMEVAL_P(other_obj);
-  zval *sum;
-  PHP_GRPC_MAKE_STD_ZVAL(sum);
-  sum =
-      grpc_php_wrap_timeval(gpr_time_add(self->wrapped, other->wrapped)
-                            TSRMLS_CC);
+  zval *sum =
+    grpc_php_wrap_timeval(gpr_time_add(self->wrapped, other->wrapped)
+                          TSRMLS_CC);
   RETURN_DESTROY_ZVAL(sum);
 }
 
@@ -141,11 +139,9 @@ PHP_METHOD(Timeval, subtract) {
   }
   wrapped_grpc_timeval *self = Z_WRAPPED_GRPC_TIMEVAL_P(getThis());
   wrapped_grpc_timeval *other = Z_WRAPPED_GRPC_TIMEVAL_P(other_obj);
-  zval *diff;
-  PHP_GRPC_MAKE_STD_ZVAL(diff);
-  diff =
-      grpc_php_wrap_timeval(gpr_time_sub(self->wrapped, other->wrapped)
-                            TSRMLS_CC);
+  zval *diff =
+    grpc_php_wrap_timeval(gpr_time_sub(self->wrapped, other->wrapped)
+                          TSRMLS_CC);
   RETURN_DESTROY_ZVAL(diff);
 }
 
@@ -206,9 +202,7 @@ PHP_METHOD(Timeval, similar) {
  * @return Timeval The current time
  */
 PHP_METHOD(Timeval, now) {
-  zval *now;
-  PHP_GRPC_MAKE_STD_ZVAL(now);
-  now = grpc_php_wrap_timeval(gpr_now(GPR_CLOCK_REALTIME) TSRMLS_CC);
+  zval *now = grpc_php_wrap_timeval(gpr_now(GPR_CLOCK_REALTIME) TSRMLS_CC);
   RETURN_DESTROY_ZVAL(now);
 }
 
@@ -217,13 +211,9 @@ PHP_METHOD(Timeval, now) {
  * @return Timeval Zero length time interval
  */
 PHP_METHOD(Timeval, zero) {
-  zval *grpc_php_timeval_zero;
-  PHP_GRPC_MAKE_STD_ZVAL(grpc_php_timeval_zero);
-  grpc_php_timeval_zero =
-      grpc_php_wrap_timeval(gpr_time_0(GPR_CLOCK_REALTIME) TSRMLS_CC);
-  RETURN_ZVAL(grpc_php_timeval_zero,
-              false, /* Copy original before returning? */
-              true /* Destroy original before returning */);
+  zval *grpc_php_timeval_zero =
+    grpc_php_wrap_timeval(gpr_time_0(GPR_CLOCK_REALTIME) TSRMLS_CC);
+  RETURN_DESTROY_ZVAL(grpc_php_timeval_zero);
 }
 
 /**
@@ -231,10 +221,8 @@ PHP_METHOD(Timeval, zero) {
  * @return Timeval Infinite future time value
  */
 PHP_METHOD(Timeval, infFuture) {
-  zval *grpc_php_timeval_inf_future;
-  PHP_GRPC_MAKE_STD_ZVAL(grpc_php_timeval_inf_future);
-  grpc_php_timeval_inf_future =
-      grpc_php_wrap_timeval(gpr_inf_future(GPR_CLOCK_REALTIME) TSRMLS_CC);
+  zval *grpc_php_timeval_inf_future =
+    grpc_php_wrap_timeval(gpr_inf_future(GPR_CLOCK_REALTIME) TSRMLS_CC);
   RETURN_DESTROY_ZVAL(grpc_php_timeval_inf_future);
 }
 
@@ -243,10 +231,8 @@ PHP_METHOD(Timeval, infFuture) {
  * @return Timeval Infinite past time value
  */
 PHP_METHOD(Timeval, infPast) {
-  zval *grpc_php_timeval_inf_past;
-  PHP_GRPC_MAKE_STD_ZVAL(grpc_php_timeval_inf_past);
-  grpc_php_timeval_inf_past =
-      grpc_php_wrap_timeval(gpr_inf_past(GPR_CLOCK_REALTIME) TSRMLS_CC);
+  zval *grpc_php_timeval_inf_past =
+    grpc_php_wrap_timeval(gpr_inf_past(GPR_CLOCK_REALTIME) TSRMLS_CC);
   RETURN_DESTROY_ZVAL(grpc_php_timeval_inf_past);
 }
 
diff --git a/src/proto/grpc/testing/control.proto b/src/proto/grpc/testing/control.proto
index be387cf7869279cbd5d2de9d5f1690e8c1cc2098..529313cfb1ea5f38b0d9576838f2d1385acfe5f1 100644
--- a/src/proto/grpc/testing/control.proto
+++ b/src/proto/grpc/testing/control.proto
@@ -78,6 +78,14 @@ message SecurityParams {
   string server_host_override = 2;
 }
 
+message ChannelArg {
+  string name = 1;
+  oneof value {
+    string str_value = 2;
+    int32 int_value = 3;
+  }
+}
+
 message ClientConfig {
   // List of targets to connect to. At least one target needs to be specified.
   repeated string server_targets = 1;
@@ -103,6 +111,8 @@ message ClientConfig {
 
   // If we use an OTHER_CLIENT client_type, this string gives more detail
   string other_client_api = 15;
+
+  repeated ChannelArg channel_args = 16;
 }
 
 message ClientStatus { ClientStats stats = 1; }
diff --git a/templates/config.m4.template b/templates/config.m4.template
index 5847d456f51c89c941065e04344f86ce0a2f4469..f5f1d23088dadeaedff737fc148349a366a6d484 100644
--- a/templates/config.m4.template
+++ b/templates/config.m4.template
@@ -7,9 +7,9 @@
     dnl Write more examples of tests here...
 
     dnl # --with-grpc -> add include path
-    PHP_ADD_INCLUDE(../../grpc/include)
-    PHP_ADD_INCLUDE(../../grpc/src/php/ext/grpc)
-    PHP_ADD_INCLUDE(../../grpc/third_party/boringssl/include)
+    PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
+    PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
+    PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
 
     LIBS="-lpthread $LIBS"
 
diff --git a/templates/package.json.template b/templates/package.json.template
index 81f39d27f518361064cc84642c857771b007758c..eb85c06590ef92116272f621dc6c442f27566f15 100644
--- a/templates/package.json.template
+++ b/templates/package.json.template
@@ -52,7 +52,7 @@
       "poisson-process": "^0.2.1"
     },
     "engines": {
-      "node": ">=0.12.0"
+      "node": ">=1.1.0"
     },
     "binary": {
       "module_name": "grpc_node",
diff --git a/test/core/support/BUILD b/test/core/support/BUILD
index 77f0a9a0480fcbc5bf8af910a3bf3db24e415cd5..dfe952eb373e336c90cd6758ea78eb891d0399ff 100644
--- a/test/core/support/BUILD
+++ b/test/core/support/BUILD
@@ -27,8 +27,6 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-load("//test/core/util:grpc_fuzzer.bzl", "grpc_fuzzer")
-
 cc_test(
     name = "alloc_test",
     srcs = ["alloc_test.c"],
diff --git a/test/core/util/memory_counters.h b/test/core/util/memory_counters.h
index f33281650147fc77d7ec64191dc819c705c906b9..b9b2b3adda5dcad3140d87640b557830013cd648 100644
--- a/test/core/util/memory_counters.h
+++ b/test/core/util/memory_counters.h
@@ -34,6 +34,8 @@
 #ifndef GRPC_TEST_CORE_UTIL_MEMORY_COUNTERS_H
 #define GRPC_TEST_CORE_UTIL_MEMORY_COUNTERS_H
 
+#include <stddef.h>
+
 struct grpc_memory_counters {
   size_t total_size_relative;
   size_t total_size_absolute;
diff --git a/test/cpp/end2end/async_end2end_test.cc b/test/cpp/end2end/async_end2end_test.cc
index 70be857b49622e5c1872ff2854315b5bb0fd27e1..f53601297c82828d6c6b5b8b5edbae43c855a1c3 100644
--- a/test/cpp/end2end/async_end2end_test.cc
+++ b/test/cpp/end2end/async_end2end_test.cc
@@ -263,7 +263,8 @@ class AsyncEnd2endTest : public ::testing::TestWithParam<TestScenario> {
 
     // Setup server
     ServerBuilder builder;
-    auto server_creds = GetServerCredentials(GetParam().credentials_type);
+    auto server_creds = GetCredentialsProvider()->GetServerCredentials(
+        GetParam().credentials_type);
     builder.AddListeningPort(server_address_.str(), server_creds);
     builder.RegisterService(&service_);
     cq_ = builder.AddCompletionQueue();
@@ -292,8 +293,8 @@ class AsyncEnd2endTest : public ::testing::TestWithParam<TestScenario> {
 
   void ResetStub() {
     ChannelArguments args;
-    auto channel_creds =
-        GetChannelCredentials(GetParam().credentials_type, &args);
+    auto channel_creds = GetCredentialsProvider()->GetChannelCredentials(
+        GetParam().credentials_type, &args);
     std::shared_ptr<Channel> channel =
         CreateCustomChannel(server_address_.str(), channel_creds, args);
     stub_ = grpc::testing::EchoTestService::NewStub(channel);
@@ -901,8 +902,8 @@ TEST_P(AsyncEnd2endTest, ServerCheckDone) {
 
 TEST_P(AsyncEnd2endTest, UnimplementedRpc) {
   ChannelArguments args;
-  auto channel_creds =
-      GetChannelCredentials(GetParam().credentials_type, &args);
+  auto channel_creds = GetCredentialsProvider()->GetChannelCredentials(
+      GetParam().credentials_type, &args);
   std::shared_ptr<Channel> channel =
       CreateCustomChannel(server_address_.str(), channel_creds, args);
   std::unique_ptr<grpc::testing::UnimplementedEchoService::Stub> stub;
@@ -1413,11 +1414,15 @@ std::vector<TestScenario> CreateTestScenarios(bool test_disable_blocking,
   std::vector<grpc::string> credentials_types;
   std::vector<grpc::string> messages;
 
-  credentials_types.push_back(kInsecureCredentialsType);
-  auto sec_list = GetSecureCredentialsTypeList();
+  if (GetCredentialsProvider()->GetChannelCredentials(kInsecureCredentialsType,
+                                                      nullptr) != nullptr) {
+    credentials_types.push_back(kInsecureCredentialsType);
+  }
+  auto sec_list = GetCredentialsProvider()->GetSecureCredentialsTypeList();
   for (auto sec = sec_list.begin(); sec != sec_list.end(); sec++) {
     credentials_types.push_back(*sec);
   }
+  GPR_ASSERT(!credentials_types.empty());
 
   messages.push_back("Hello");
   for (int sz = 1; sz < test_big_limit; sz *= 2) {
diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index dff5c3d9ecddbc007dc9b67378bda688e2abca6d..d2c7edc64b9dbb1f21958dbee6ee002e7dd5c395 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -252,7 +252,8 @@ class End2endTest : public ::testing::TestWithParam<TestScenario> {
     // Setup server
     ServerBuilder builder;
     ConfigureServerBuilder(&builder);
-    auto server_creds = GetServerCredentials(GetParam().credentials_type);
+    auto server_creds = GetCredentialsProvider()->GetServerCredentials(
+        GetParam().credentials_type);
     if (GetParam().credentials_type != kInsecureCredentialsType) {
       server_creds->SetAuthMetadataProcessor(processor);
     }
@@ -280,8 +281,8 @@ class End2endTest : public ::testing::TestWithParam<TestScenario> {
     }
     EXPECT_TRUE(is_server_started_);
     ChannelArguments args;
-    auto channel_creds =
-        GetChannelCredentials(GetParam().credentials_type, &args);
+    auto channel_creds = GetCredentialsProvider()->GetChannelCredentials(
+        GetParam().credentials_type, &args);
     if (!user_agent_prefix_.empty()) {
       args.SetUserAgentPrefix(user_agent_prefix_);
     }
@@ -1531,11 +1532,18 @@ std::vector<TestScenario> CreateTestScenarios(bool use_proxy,
   std::vector<TestScenario> scenarios;
   std::vector<grpc::string> credentials_types;
   if (test_secure) {
-    credentials_types = GetSecureCredentialsTypeList();
+    credentials_types =
+        GetCredentialsProvider()->GetSecureCredentialsTypeList();
   }
   if (test_insecure) {
-    credentials_types.push_back(kInsecureCredentialsType);
+    // Only add insecure credentials type when it is registered with the
+    // provider. User may create providers that do not have insecure.
+    if (GetCredentialsProvider()->GetChannelCredentials(
+            kInsecureCredentialsType, nullptr) != nullptr) {
+      credentials_types.push_back(kInsecureCredentialsType);
+    }
   }
+  GPR_ASSERT(!credentials_types.empty());
   for (auto it = credentials_types.begin(); it != credentials_types.end();
        ++it) {
     scenarios.emplace_back(false, *it);
@@ -1552,7 +1560,7 @@ INSTANTIATE_TEST_CASE_P(End2end, End2endTest,
 
 INSTANTIATE_TEST_CASE_P(End2endServerTryCancel, End2endServerTryCancelTest,
                         ::testing::ValuesIn(CreateTestScenarios(false, true,
-                                                                false)));
+                                                                true)));
 
 INSTANTIATE_TEST_CASE_P(ProxyEnd2end, ProxyEnd2endTest,
                         ::testing::ValuesIn(CreateTestScenarios(true, true,
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index bd4c5e2635dc21d545eaf8d10d57a3fd80b1bce5..1df2fc8320633072747be6a9b71e4b59ffd287c5 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -50,6 +50,7 @@
 #include "test/cpp/util/test_config.h"
 
 DEFINE_bool(use_tls, false, "Whether to use tls.");
+DEFINE_string(custom_credentials_type, "", "User provided credentials type.");
 DEFINE_bool(use_test_ca, false, "False to use SSL roots for google");
 DEFINE_int32(server_port, 0, "Server port.");
 DEFINE_string(server_host, "127.0.0.1", "Server host to connect to");
diff --git a/test/cpp/interop/client_helper.cc b/test/cpp/interop/client_helper.cc
index c171969e147d35665fe5dd95d14f38db8cb8019b..91564e5dcefbb71c1f50a9d6f6deb97715f5ff5a 100644
--- a/test/cpp/interop/client_helper.cc
+++ b/test/cpp/interop/client_helper.cc
@@ -50,8 +50,10 @@
 #include "src/cpp/client/secure_credentials.h"
 #include "test/core/security/oauth2_utils.h"
 #include "test/cpp/util/create_test_channel.h"
+#include "test/cpp/util/test_credentials_provider.h"
 
 DECLARE_bool(use_tls);
+DECLARE_string(custom_credentials_type);
 DECLARE_bool(use_test_ca);
 DECLARE_int32(server_port);
 DECLARE_string(server_host);
@@ -114,8 +116,12 @@ std::shared_ptr<Channel> CreateChannelForTestCase(
     creds = AccessTokenCredentials(raw_token);
     GPR_ASSERT(creds);
   }
-  return CreateTestChannel(host_port, FLAGS_server_host_override, FLAGS_use_tls,
-                           !FLAGS_use_test_ca, creds);
+  if (FLAGS_custom_credentials_type.empty()) {
+    return CreateTestChannel(host_port, FLAGS_server_host_override,
+                             FLAGS_use_tls, !FLAGS_use_test_ca, creds);
+  } else {
+    return CreateTestChannel(host_port, FLAGS_custom_credentials_type, creds);
+  }
 }
 
 }  // namespace testing
diff --git a/test/cpp/interop/http2_client.cc b/test/cpp/interop/http2_client.cc
new file mode 100644
index 0000000000000000000000000000000000000000..38aee43b26a947b9ed39b9e071e3d8ba194b6973
--- /dev/null
+++ b/test/cpp/interop/http2_client.cc
@@ -0,0 +1,272 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <thread>
+
+#include <gflags/gflags.h>
+#include <grpc++/channel.h>
+#include <grpc++/client_context.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+
+#include "src/core/lib/transport/byte_stream.h"
+#include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+#include "test/cpp/interop/http2_client.h"
+
+#include "src/core/lib/support/string.h"
+#include "test/cpp/util/create_test_channel.h"
+#include "test/cpp/util/test_config.h"
+
+namespace grpc {
+namespace testing {
+
+namespace {
+const int kLargeRequestSize = 271828;
+const int kLargeResponseSize = 314159;
+}  // namespace
+
+Http2Client::ServiceStub::ServiceStub(std::shared_ptr<Channel> channel)
+    : channel_(channel) {
+  stub_ = TestService::NewStub(channel);
+}
+
+TestService::Stub* Http2Client::ServiceStub::Get() { return stub_.get(); }
+
+Http2Client::Http2Client(std::shared_ptr<Channel> channel)
+    : serviceStub_(channel), channel_(channel) {}
+
+bool Http2Client::AssertStatusCode(const Status& s, StatusCode expected_code) {
+  if (s.error_code() == expected_code) {
+    return true;
+  }
+
+  gpr_log(GPR_ERROR, "Error status code: %d (expected: %d), message: %s",
+          s.error_code(), expected_code, s.error_message().c_str());
+  abort();
+}
+
+bool Http2Client::DoRstAfterHeader() {
+  gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream after header");
+
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s = serviceStub_.Get()->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::UNKNOWN);
+  GPR_ASSERT(!response.has_payload());  // no data should be received
+
+  gpr_log(GPR_DEBUG, "Done testing reset stream after header");
+  return true;
+}
+
+bool Http2Client::DoRstAfterData() {
+  gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream after data");
+
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s = serviceStub_.Get()->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::UNKNOWN);
+  GPR_ASSERT(response.has_payload());  // data should be received
+
+  gpr_log(GPR_DEBUG, "Done testing reset stream after data");
+  return true;
+}
+
+bool Http2Client::DoRstDuringData() {
+  gpr_log(GPR_DEBUG, "Sending RPC and expecting reset stream during data");
+
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s = serviceStub_.Get()->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::UNKNOWN);
+  GPR_ASSERT(!response.has_payload());  // no data should be received
+
+  gpr_log(GPR_DEBUG, "Done testing reset stream during data");
+  return true;
+}
+
+bool Http2Client::DoGoaway() {
+  gpr_log(GPR_DEBUG, "Sending two RPCs and expecting goaway");
+
+  int numCalls = 2;
+  for (int i = 0; i < numCalls; i++) {
+    ClientContext context;
+    SimpleRequest request;
+    SimpleResponse response;
+    request.set_response_size(kLargeResponseSize);
+    grpc::string payload(kLargeRequestSize, '\0');
+    request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+    Status s = serviceStub_.Get()->UnaryCall(&context, request, &response);
+    AssertStatusCode(s, grpc::StatusCode::OK);
+    GPR_ASSERT(response.payload().body() ==
+               grpc::string(kLargeResponseSize, '\0'));
+  }
+
+  gpr_log(GPR_DEBUG, "Done testing goaway");
+  return true;
+}
+
+bool Http2Client::DoPing() {
+  gpr_log(GPR_DEBUG, "Sending RPC and expecting ping");
+
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s = serviceStub_.Get()->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::OK);
+  GPR_ASSERT(response.payload().body() ==
+             grpc::string(kLargeResponseSize, '\0'));
+
+  gpr_log(GPR_DEBUG, "Done testing ping");
+  return true;
+}
+
+void Http2Client::MaxStreamsWorker(std::shared_ptr<grpc::Channel> channel) {
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+
+  Status s =
+      TestService::NewStub(channel)->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::OK);
+  GPR_ASSERT(response.payload().body() ==
+             grpc::string(kLargeResponseSize, '\0'));
+}
+
+bool Http2Client::DoMaxStreams() {
+  gpr_log(GPR_DEBUG, "Testing max streams");
+
+  // Make an initial call on the channel to ensure the server's max streams
+  // setting is received
+  ClientContext context;
+  SimpleRequest request;
+  SimpleResponse response;
+  request.set_response_size(kLargeResponseSize);
+  grpc::string payload(kLargeRequestSize, '\0');
+  request.mutable_payload()->set_body(payload.c_str(), kLargeRequestSize);
+  Status s =
+      TestService::NewStub(channel_)->UnaryCall(&context, request, &response);
+  AssertStatusCode(s, grpc::StatusCode::OK);
+  GPR_ASSERT(response.payload().body() ==
+             grpc::string(kLargeResponseSize, '\0'));
+
+  std::vector<std::thread> test_threads;
+
+  for (int i = 0; i < 10; i++) {
+    test_threads.emplace_back(
+        std::thread(&Http2Client::MaxStreamsWorker, this, channel_));
+  }
+
+  for (auto it = test_threads.begin(); it != test_threads.end(); it++) {
+    it->join();
+  }
+
+  gpr_log(GPR_DEBUG, "Done testing max streams");
+  return true;
+}
+
+}  // namespace testing
+}  // namespace grpc
+
+DEFINE_int32(server_port, 0, "Server port.");
+DEFINE_string(server_host, "127.0.0.1", "Server host to connect to");
+DEFINE_string(test_case, "rst_after_header",
+              "Configure different test cases. Valid options are:\n\n"
+              "goaway\n"
+              "max_streams\n"
+              "ping\n"
+              "rst_after_data\n"
+              "rst_after_header\n"
+              "rst_during_data\n");
+
+int main(int argc, char** argv) {
+  grpc::testing::InitTest(&argc, &argv, true);
+  GPR_ASSERT(FLAGS_server_port);
+  const int host_port_buf_size = 1024;
+  char host_port[host_port_buf_size];
+  snprintf(host_port, host_port_buf_size, "%s:%d", FLAGS_server_host.c_str(),
+           FLAGS_server_port);
+  grpc::testing::Http2Client client(grpc::CreateTestChannel(host_port, false));
+  gpr_log(GPR_INFO, "Testing case: %s", FLAGS_test_case.c_str());
+  int ret = 0;
+  if (FLAGS_test_case == "rst_after_header") {
+    client.DoRstAfterHeader();
+  } else if (FLAGS_test_case == "rst_after_data") {
+    client.DoRstAfterData();
+  } else if (FLAGS_test_case == "rst_during_data") {
+    client.DoRstDuringData();
+  } else if (FLAGS_test_case == "goaway") {
+    client.DoGoaway();
+  } else if (FLAGS_test_case == "ping") {
+    client.DoPing();
+  } else if (FLAGS_test_case == "max_streams") {
+    client.DoMaxStreams();
+  } else {
+    const char* testcases[] = {
+        "goaway",         "max_streams",      "ping",
+        "rst_after_data", "rst_after_header", "rst_during_data"};
+    char* joined_testcases =
+        gpr_strjoin_sep(testcases, GPR_ARRAY_SIZE(testcases), "\n", NULL);
+
+    gpr_log(GPR_ERROR, "Unsupported test case %s. Valid options are\n%s",
+            FLAGS_test_case.c_str(), joined_testcases);
+    gpr_free(joined_testcases);
+    ret = 1;
+  }
+
+  return ret;
+}
diff --git a/test/cpp/interop/http2_client.h b/test/cpp/interop/http2_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..6a315f5abbab8b38e4ebcacd56c205f2d9bdf55f
--- /dev/null
+++ b/test/cpp/interop/http2_client.h
@@ -0,0 +1,80 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_TEST_CPP_INTEROP_HTTP2_CLIENT_H
+#define GRPC_TEST_CPP_INTEROP_HTTP2_CLIENT_H
+
+#include <memory>
+
+#include <grpc++/channel.h>
+#include <grpc/grpc.h>
+#include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+
+namespace grpc {
+namespace testing {
+
+class Http2Client {
+ public:
+  explicit Http2Client(std::shared_ptr<Channel> channel);
+  ~Http2Client() {}
+
+  bool DoRstAfterHeader();
+  bool DoRstAfterData();
+  bool DoRstDuringData();
+  bool DoGoaway();
+  bool DoPing();
+  bool DoMaxStreams();
+
+ private:
+  class ServiceStub {
+   public:
+    ServiceStub(std::shared_ptr<Channel> channel);
+
+    TestService::Stub* Get();
+
+   private:
+    std::unique_ptr<TestService::Stub> stub_;
+    std::shared_ptr<Channel> channel_;
+  };
+
+  void MaxStreamsWorker(std::shared_ptr<grpc::Channel> channel);
+  bool AssertStatusCode(const Status& s, StatusCode expected_code);
+  ServiceStub serviceStub_;
+  std::shared_ptr<Channel> channel_;
+};
+
+}  // namespace testing
+}  // namespace grpc
+
+#endif  // GRPC_TEST_CPP_INTEROP_HTTP2_CLIENT_H
diff --git a/test/cpp/interop/interop_server.cc b/test/cpp/interop/interop_server.cc
index ab9a5d9b2f357843baa9eceadc2a63e0d6f2bfa2..1810cd076f9cc9d99579773e3a351d8b2e6e3a79 100644
--- a/test/cpp/interop/interop_server.cc
+++ b/test/cpp/interop/interop_server.cc
@@ -56,6 +56,7 @@
 #include "test/cpp/util/test_config.h"
 
 DEFINE_bool(use_tls, false, "Whether to use tls.");
+DEFINE_string(custom_credentials_type, "", "User provided credentials type.");
 DEFINE_int32(port, 0, "Server port.");
 DEFINE_int32(max_send_message_size, -1, "The maximum send message size.");
 
diff --git a/test/cpp/interop/server_helper.cc b/test/cpp/interop/server_helper.cc
index 8b0b511bcb89d62d4e5642266b8aaaa83bf9e6b2..d395f50fa59297f86d7154cead138e50a67945e4 100644
--- a/test/cpp/interop/server_helper.cc
+++ b/test/cpp/interop/server_helper.cc
@@ -39,23 +39,23 @@
 #include <grpc++/security/server_credentials.h>
 
 #include "src/core/lib/surface/call_test_only.h"
-#include "test/core/end2end/data/ssl_test_data.h"
+#include "test/cpp/util/test_credentials_provider.h"
 
 DECLARE_bool(use_tls);
+DECLARE_string(custom_credentials_type);
 
 namespace grpc {
 namespace testing {
 
 std::shared_ptr<ServerCredentials> CreateInteropServerCredentials() {
-  if (FLAGS_use_tls) {
-    SslServerCredentialsOptions::PemKeyCertPair pkcp = {test_server1_key,
-                                                        test_server1_cert};
-    SslServerCredentialsOptions ssl_opts;
-    ssl_opts.pem_root_certs = "";
-    ssl_opts.pem_key_cert_pairs.push_back(pkcp);
-    return SslServerCredentials(ssl_opts);
+  if (!FLAGS_custom_credentials_type.empty()) {
+    return GetCredentialsProvider()->GetServerCredentials(
+        FLAGS_custom_credentials_type);
+  } else if (FLAGS_use_tls) {
+    return GetCredentialsProvider()->GetServerCredentials(kTlsCredentialsType);
   } else {
-    return InsecureServerCredentials();
+    return GetCredentialsProvider()->GetServerCredentials(
+        kInsecureCredentialsType);
   }
 }
 
diff --git a/test/cpp/interop/stress_test.cc b/test/cpp/interop/stress_test.cc
index 97e658869fe1e9c787f8b8ffa4d056aa2e80e1e8..562522de779c34c530299048b913207861ded048 100644
--- a/test/cpp/interop/stress_test.cc
+++ b/test/cpp/interop/stress_test.cc
@@ -147,6 +147,7 @@ DEFINE_bool(do_not_abort_on_transient_failures, true,
 // Options from client.cc (for compatibility with interop test).
 // TODO(sreek): Consolidate overlapping options
 DEFINE_bool(use_tls, false, "Whether to use tls.");
+DEFINE_string(custom_credentials_type, "", "User provided credentials type.");
 DEFINE_bool(use_test_ca, false, "False to use SSL roots for google");
 DEFINE_int32(server_port, 0, "Server port.");
 DEFINE_string(server_host, "127.0.0.1", "Server host to connect to");
diff --git a/test/cpp/qps/client.h b/test/cpp/qps/client.h
index fdd78ebb899d2626278e4263674a6acbb8f978f4..18f9778fc6f90444d9842dd5e19ab442de881b6b 100644
--- a/test/cpp/qps/client.h
+++ b/test/cpp/qps/client.h
@@ -409,6 +409,7 @@ class ClientImpl : public Client {
       // old compilers happy with using this in std::vector
       ChannelArguments args;
       args.SetInt("shard_to_ensure_no_subchannel_merges", shard);
+      set_channel_args(config, &args);
       channel_ = CreateTestChannel(
           target, config.security_params().server_host_override(),
           config.has_security_params(), !config.security_params().use_test_ca(),
@@ -423,6 +424,18 @@ class ClientImpl : public Client {
     StubType* get_stub() { return stub_.get(); }
 
    private:
+    void set_channel_args(const ClientConfig& config, ChannelArguments* args) {
+      for (auto channel_arg : config.channel_args()) {
+        if (channel_arg.value_case() == ChannelArg::kStrValue) {
+          args->SetString(channel_arg.name(), channel_arg.str_value());
+        } else if (channel_arg.value_case() == ChannelArg::kIntValue) {
+          args->SetInt(channel_arg.name(), channel_arg.int_value());
+        } else {
+          gpr_log(GPR_ERROR, "Empty channel arg value.");
+        }
+      }
+    }
+
     std::shared_ptr<Channel> channel_;
     std::unique_ptr<StubType> stub_;
   };
diff --git a/test/cpp/qps/qps_json_driver.cc b/test/cpp/qps/qps_json_driver.cc
index da835b995abbbe26d8067df2590b00694821ee83..57ee5ef63cd1eacbb94db2b9cfa239c5426d4bf6 100644
--- a/test/cpp/qps/qps_json_driver.cc
+++ b/test/cpp/qps/qps_json_driver.cc
@@ -212,6 +212,7 @@ static bool QpsDriver() {
             SearchOfferedLoad(FLAGS_initial_search_value,
                               FLAGS_targeted_cpu_load, scenario, &success);
         gpr_log(GPR_INFO, "targeted_offered_load %f", targeted_offered_load);
+        GetCpuLoad(scenario, targeted_offered_load, &success);
       } else {
         gpr_log(GPR_ERROR, "Unimplemented search param");
       }
diff --git a/test/cpp/util/create_test_channel.cc b/test/cpp/util/create_test_channel.cc
index fe8b5d54235b1bd2fe64c24e4bf63db290ec95a3..ad62e03490e359501e2fa1a1dab1662ba34f5391 100644
--- a/test/cpp/util/create_test_channel.cc
+++ b/test/cpp/util/create_test_channel.cc
@@ -35,11 +35,37 @@
 
 #include <grpc++/create_channel.h>
 #include <grpc++/security/credentials.h>
+#include <grpc/support/log.h>
 
-#include "test/core/end2end/data/ssl_test_data.h"
+#include "test/cpp/util/test_credentials_provider.h"
 
 namespace grpc {
 
+namespace {
+
+const char kProdTlsCredentialsType[] = "prod_ssl";
+
+class SslCredentialProvider : public testing::CredentialTypeProvider {
+ public:
+  std::shared_ptr<ChannelCredentials> GetChannelCredentials(
+      grpc::ChannelArguments* args) override {
+    return SslCredentials(SslCredentialsOptions());
+  }
+  std::shared_ptr<ServerCredentials> GetServerCredentials() override {
+    return nullptr;
+  }
+};
+
+gpr_once g_once_init_add_prod_ssl_provider = GPR_ONCE_INIT;
+// Register ssl with non-test roots type to the credentials provider.
+void AddProdSslType() {
+  testing::GetCredentialsProvider()->AddSecureType(
+      kProdTlsCredentialsType, std::unique_ptr<testing::CredentialTypeProvider>(
+                                   new SslCredentialProvider));
+}
+
+}  // namespace
+
 // When ssl is enabled, if server is empty, override_hostname is used to
 // create channel. Otherwise, connect to server and override hostname if
 // override_hostname is provided.
@@ -61,16 +87,22 @@ std::shared_ptr<Channel> CreateTestChannel(
     const std::shared_ptr<CallCredentials>& creds,
     const ChannelArguments& args) {
   ChannelArguments channel_args(args);
+  std::shared_ptr<ChannelCredentials> channel_creds;
   if (enable_ssl) {
-    const char* roots_certs = use_prod_roots ? "" : test_root_cert;
-    SslCredentialsOptions ssl_opts = {roots_certs, "", ""};
-
-    std::shared_ptr<ChannelCredentials> channel_creds =
-        SslCredentials(ssl_opts);
-
-    if (!server.empty() && !override_hostname.empty()) {
-      channel_args.SetSslTargetNameOverride(override_hostname);
+    if (use_prod_roots) {
+      gpr_once_init(&g_once_init_add_prod_ssl_provider, &AddProdSslType);
+      channel_creds = testing::GetCredentialsProvider()->GetChannelCredentials(
+          kProdTlsCredentialsType, &channel_args);
+      if (!server.empty() && !override_hostname.empty()) {
+        channel_args.SetSslTargetNameOverride(override_hostname);
+      }
+    } else {
+      // override_hostname is discarded as the provider handles it.
+      channel_creds = testing::GetCredentialsProvider()->GetChannelCredentials(
+          testing::kTlsCredentialsType, &channel_args);
     }
+    GPR_ASSERT(channel_creds != nullptr);
+
     const grpc::string& connect_to =
         server.empty() ? override_hostname : server;
     if (creds.get()) {
@@ -103,4 +135,18 @@ std::shared_ptr<Channel> CreateTestChannel(const grpc::string& server,
   return CreateTestChannel(server, "foo.test.google.fr", enable_ssl, false);
 }
 
+std::shared_ptr<Channel> CreateTestChannel(
+    const grpc::string& server, const grpc::string& credential_type,
+    const std::shared_ptr<CallCredentials>& creds) {
+  ChannelArguments channel_args;
+  std::shared_ptr<ChannelCredentials> channel_creds =
+      testing::GetCredentialsProvider()->GetChannelCredentials(credential_type,
+                                                               &channel_args);
+  GPR_ASSERT(channel_creds != nullptr);
+  if (creds.get()) {
+    channel_creds = CompositeChannelCredentials(channel_creds, creds);
+  }
+  return CreateCustomChannel(server, channel_creds, channel_args);
+}
+
 }  // namespace grpc
diff --git a/test/cpp/util/create_test_channel.h b/test/cpp/util/create_test_channel.h
index 4ff666dc1bc43b48cf6eb75ca55e7684d86a0319..ce71a97edbbf6b08d3bd5beb024a5dd20230b132 100644
--- a/test/cpp/util/create_test_channel.h
+++ b/test/cpp/util/create_test_channel.h
@@ -59,6 +59,10 @@ std::shared_ptr<Channel> CreateTestChannel(
     const std::shared_ptr<CallCredentials>& creds,
     const ChannelArguments& args);
 
+std::shared_ptr<Channel> CreateTestChannel(
+    const grpc::string& server, const grpc::string& credential_type,
+    const std::shared_ptr<CallCredentials>& creds);
+
 }  // namespace grpc
 
 #endif  // GRPC_TEST_CPP_UTIL_CREATE_TEST_CHANNEL_H
diff --git a/test/cpp/util/test_credentials_provider.cc b/test/cpp/util/test_credentials_provider.cc
index 0456b9666710ceb0e4fb13ce1929d8653ef78cd9..909b02a7019fe426733f140fbb4b06c5c3ca9576 100644
--- a/test/cpp/util/test_credentials_provider.cc
+++ b/test/cpp/util/test_credentials_provider.cc
@@ -43,25 +43,9 @@
 #include "test/core/end2end/data/ssl_test_data.h"
 
 namespace grpc {
+namespace testing {
 namespace {
 
-using grpc::testing::CredentialTypeProvider;
-
-// Provide test credentials. Thread-safe.
-class CredentialsProvider {
- public:
-  virtual ~CredentialsProvider() {}
-
-  virtual void AddSecureType(
-      const grpc::string& type,
-      std::unique_ptr<CredentialTypeProvider> type_provider) = 0;
-  virtual std::shared_ptr<ChannelCredentials> GetChannelCredentials(
-      const grpc::string& type, ChannelArguments* args) = 0;
-  virtual std::shared_ptr<ServerCredentials> GetServerCredentials(
-      const grpc::string& type) = 0;
-  virtual std::vector<grpc::string> GetSecureCredentialsTypeList() = 0;
-};
-
 class DefaultCredentialsProvider : public CredentialsProvider {
  public:
   ~DefaultCredentialsProvider() override {}
@@ -145,37 +129,21 @@ class DefaultCredentialsProvider : public CredentialsProvider {
       added_secure_type_providers_;
 };
 
-gpr_once g_once_init_provider = GPR_ONCE_INIT;
 CredentialsProvider* g_provider = nullptr;
 
-void CreateDefaultProvider() { g_provider = new DefaultCredentialsProvider; }
-
-CredentialsProvider* GetProvider() {
-  gpr_once_init(&g_once_init_provider, &CreateDefaultProvider);
-  return g_provider;
-}
-
 }  // namespace
 
-namespace testing {
-
-void AddSecureType(const grpc::string& type,
-                   std::unique_ptr<CredentialTypeProvider> type_provider) {
-  GetProvider()->AddSecureType(type, std::move(type_provider));
-}
-
-std::shared_ptr<ChannelCredentials> GetChannelCredentials(
-    const grpc::string& type, ChannelArguments* args) {
-  return GetProvider()->GetChannelCredentials(type, args);
-}
-
-std::shared_ptr<ServerCredentials> GetServerCredentials(
-    const grpc::string& type) {
-  return GetProvider()->GetServerCredentials(type);
+CredentialsProvider* GetCredentialsProvider() {
+  if (g_provider == nullptr) {
+    g_provider = new DefaultCredentialsProvider;
+  }
+  return g_provider;
 }
 
-std::vector<grpc::string> GetSecureCredentialsTypeList() {
-  return GetProvider()->GetSecureCredentialsTypeList();
+void SetCredentialsProvider(CredentialsProvider* provider) {
+  // For now, forbids overriding provider.
+  GPR_ASSERT(g_provider == nullptr);
+  g_provider = provider;
 }
 
 }  // namespace testing
diff --git a/test/cpp/util/test_credentials_provider.h b/test/cpp/util/test_credentials_provider.h
index 1fb311e556e8c9ac6dc99b463a6a71fe56286244..0bc52ebe4dfa2d433ee14b6603ef33c4cedbe7d8 100644
--- a/test/cpp/util/test_credentials_provider.h
+++ b/test/cpp/util/test_credentials_provider.h
@@ -59,23 +59,39 @@ class CredentialTypeProvider {
   virtual std::shared_ptr<ServerCredentials> GetServerCredentials() = 0;
 };
 
-// Add a secure type in addition to the defaults above
-// (kInsecureCredentialsType, kTlsCredentialsType) that can be returned from the
-// functions below.
-void AddSecureType(const grpc::string& type,
-                   std::unique_ptr<CredentialTypeProvider> type_provider);
-
-// Provide channel credentials according to the given type. Alter the channel
-// arguments if needed.
-std::shared_ptr<ChannelCredentials> GetChannelCredentials(
-    const grpc::string& type, ChannelArguments* args);
-
-// Provide server credentials according to the given type.
-std::shared_ptr<ServerCredentials> GetServerCredentials(
-    const grpc::string& type);
-
-// Provide a list of secure credentials type.
-std::vector<grpc::string> GetSecureCredentialsTypeList();
+// Provide test credentials. Thread-safe.
+class CredentialsProvider {
+ public:
+  virtual ~CredentialsProvider() {}
+
+  // Add a secure type in addition to the defaults. The default provider has
+  // (kInsecureCredentialsType, kTlsCredentialsType).
+  virtual void AddSecureType(
+      const grpc::string& type,
+      std::unique_ptr<CredentialTypeProvider> type_provider) = 0;
+
+  // Provide channel credentials according to the given type. Alter the channel
+  // arguments if needed. Return nullptr if type is not registered.
+  virtual std::shared_ptr<ChannelCredentials> GetChannelCredentials(
+      const grpc::string& type, ChannelArguments* args) = 0;
+
+  // Provide server credentials according to the given type.
+  // Return nullptr if type is not registered.
+  virtual std::shared_ptr<ServerCredentials> GetServerCredentials(
+      const grpc::string& type) = 0;
+
+  // Provide a list of secure credentials type.
+  virtual std::vector<grpc::string> GetSecureCredentialsTypeList() = 0;
+};
+
+// Get the current provider. Create a default one if not set.
+// Not thread-safe.
+CredentialsProvider* GetCredentialsProvider();
+
+// Set the global provider. Takes ownership. The previous set provider will be
+// destroyed.
+// Not thread-safe.
+void SetCredentialsProvider(CredentialsProvider* provider);
 
 }  // namespace testing
 }  // namespace grpc
diff --git a/tools/run_tests/artifacts/build_artifact_node.bat b/tools/run_tests/artifacts/build_artifact_node.bat
index 2e0ecd21d0fe6e85164b85eb0a1c5152d921753c..59644c889656f87dff96ba7ff5c02ad7fa8bc7a3 100644
--- a/tools/run_tests/artifacts/build_artifact_node.bat
+++ b/tools/run_tests/artifacts/build_artifact_node.bat
@@ -27,7 +27,7 @@
 @rem (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 @rem OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-set node_versions=0.12.0 1.0.0 1.1.0 2.0.0 3.0.0 4.0.0 5.0.0 6.0.0 7.0.0
+set node_versions=1.1.0 2.0.0 3.0.0 4.0.0 5.0.0 6.0.0 7.0.0
 
 set PATH=%PATH%;C:\Program Files\nodejs\;%APPDATA%\npm
 
diff --git a/tools/run_tests/artifacts/build_artifact_node.sh b/tools/run_tests/artifacts/build_artifact_node.sh
index 1066ebde19c2c9be71fdae8758e82101b37be9d7..1deb33ba86bf9286cab1f0e498fe591fe18cf38b 100755
--- a/tools/run_tests/artifacts/build_artifact_node.sh
+++ b/tools/run_tests/artifacts/build_artifact_node.sh
@@ -42,7 +42,7 @@ mkdir -p artifacts
 
 npm update
 
-node_versions=( 0.12.0 1.0.0 1.1.0 2.0.0 3.0.0 4.0.0 5.0.0 6.0.0 7.0.0 )
+node_versions=( 1.1.0 2.0.0 3.0.0 4.0.0 5.0.0 6.0.0 7.0.0 )
 
 for version in ${node_versions[@]}
 do
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index f9a54559a9a3b8e058c94e25e04fbe711a434712..428307b0c9d389fe9b8bf80417e300f92f1f5e77 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -2772,6 +2772,23 @@
     "third_party": false, 
     "type": "target"
   }, 
+  {
+    "deps": [
+      "grpc", 
+      "grpc++", 
+      "grpc++_test_config", 
+      "grpc++_test_util", 
+      "grpc_test_util", 
+      "http2_client_main"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c++", 
+    "name": "http2_client", 
+    "src": [], 
+    "third_party": false, 
+    "type": "target"
+  }, 
   {
     "deps": [
       "gpr", 
@@ -5388,6 +5405,33 @@
     "third_party": false, 
     "type": "lib"
   }, 
+  {
+    "deps": [
+      "grpc", 
+      "grpc++", 
+      "grpc++_test_config", 
+      "grpc++_test_util", 
+      "grpc_test_util"
+    ], 
+    "headers": [
+      "src/proto/grpc/testing/empty.grpc.pb.h", 
+      "src/proto/grpc/testing/empty.pb.h", 
+      "src/proto/grpc/testing/messages.grpc.pb.h", 
+      "src/proto/grpc/testing/messages.pb.h", 
+      "src/proto/grpc/testing/test.grpc.pb.h", 
+      "src/proto/grpc/testing/test.pb.h", 
+      "test/cpp/interop/http2_client.h"
+    ], 
+    "is_filegroup": false, 
+    "language": "c++", 
+    "name": "http2_client_main", 
+    "src": [
+      "test/cpp/interop/http2_client.cc", 
+      "test/cpp/interop/http2_client.h"
+    ], 
+    "third_party": false, 
+    "type": "lib"
+  }, 
   {
     "deps": [
       "gpr", 
@@ -5447,6 +5491,7 @@
       "gpr", 
       "grpc", 
       "grpc++", 
+      "grpc++_test_util", 
       "grpc_test_util"
     ], 
     "headers": [
diff --git a/tools/run_tests/performance/bq_upload_result.py b/tools/run_tests/performance/bq_upload_result.py
index ddcf053ae5ec9a92aead775bc55a4c3332665faa..89d2a9b320fde3b83914593b5e025b1ca3be3a34 100755
--- a/tools/run_tests/performance/bq_upload_result.py
+++ b/tools/run_tests/performance/bq_upload_result.py
@@ -115,9 +115,11 @@ def _flatten_result_inplace(scenario_result):
   scenario_result['scenario']['clientConfig'] = json.dumps(scenario_result['scenario']['clientConfig'])
   scenario_result['scenario']['serverConfig'] = json.dumps(scenario_result['scenario']['serverConfig'])
   scenario_result['latencies'] = json.dumps(scenario_result['latencies'])
+  scenario_result['serverCpuStats'] = []
   for stats in scenario_result['serverStats']:
-    stats.pop('totalCpuTime', None)
-    stats.pop('idleCpuTime', None)
+    scenario_result['serverCpuStats'].append(dict())
+    scenario_result['serverCpuStats'][-1]['totalCpuTime'] = stats.pop('totalCpuTime', None)
+    scenario_result['serverCpuStats'][-1]['idleCpuTime'] = stats.pop('idleCpuTime', None)
   for stats in scenario_result['clientStats']:
     stats['latencies'] = json.dumps(stats['latencies'])
     stats.pop('requestResults', None)
@@ -125,7 +127,7 @@ def _flatten_result_inplace(scenario_result):
   scenario_result['clientSuccess'] = json.dumps(scenario_result['clientSuccess'])
   scenario_result['serverSuccess'] = json.dumps(scenario_result['serverSuccess'])
   scenario_result['requestResults'] = json.dumps(scenario_result.get('requestResults', []))
-  scenario_result['summary'].pop('serverCpuUsage', None)
+  scenario_result['serverCpuUsage'] = scenario_result['summary'].pop('serverCpuUsage', None)
   scenario_result['summary'].pop('successfulRequestsPerSecond', None)
   scenario_result['summary'].pop('failedRequestsPerSecond', None)
 
diff --git a/tools/run_tests/performance/scenario_result_schema.json b/tools/run_tests/performance/scenario_result_schema.json
index 3285f212d7752380a218aa549571ec37a6ec77e2..8ec41c377c500cb4c19d166f81f6167693eeacd1 100644
--- a/tools/run_tests/performance/scenario_result_schema.json
+++ b/tools/run_tests/performance/scenario_result_schema.json
@@ -213,5 +213,27 @@
     "name": "requestResults",
     "type": "STRING",
     "mode": "NULLABLE"
+  },
+  {
+    "name": "serverCpuStats",
+    "type": "RECORD",
+    "mode": "REPEATED",
+    "fields": [
+      {
+        "name": "totalCpuTime",
+        "type": "INTEGER",
+        "mode": "NULLABLE"
+      },
+      {
+        "name": "idleCpuTime",
+        "type": "INTEGER",
+        "mode": "NULLABLE"
+      }
+    ]
+  },
+  {
+    "name": "serverCpuUsage",
+    "type": "FLOAT",
+    "mode": "NULLABLE"
   }
 ]
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 08c4a878f09bbcd91aba184273fadfae279f66f2..56efac50ca0d23793468f18680b683c8c4c18704 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -169,6 +169,9 @@ class JavaLanguage:
   def client_cmd(self, args):
     return ['./run-test-client.sh'] + args
 
+  def client_cmd_http2interop(self, args):
+    return ['./run-http2-client.sh'] + args
+
   def cloud_to_prod_env(self):
     return {}
 
@@ -217,6 +220,33 @@ class GoLanguage:
   def __str__(self):
     return 'go'
 
+class Http2Server:
+  """Represents the HTTP/2 Interop Test server
+
+  This pretends to be a language in order to be built and run, but really it
+  isn't.
+  """
+  def __init__(self):
+    self.server_cwd = None
+    self.safename = str(self)
+
+  def server_cmd(self, args):
+    return ['python test/http2_test/http2_test_server.py']
+
+  def cloud_to_prod_env(self):
+    return {}
+
+  def global_env(self):
+    return {}
+
+  def unimplemented_test_cases(self):
+    return _TEST_CASES
+
+  def unimplemented_test_cases_server(self):
+    return _TEST_CASES
+
+  def __str__(self):
+    return 'http2'
 
 class Http2Client:
   """Represents the HTTP/2 Interop Test
@@ -375,6 +405,11 @@ class PythonLanguage:
         '--args="{}"'.format(' '.join(args))
     ]
 
+  def client_cmd_http2interop(self, args):
+    return [ 'py27/bin/python',
+              'src/python/grpcio_tests/tests/http2/_negative_http2_client.py',
+           ] + args
+
   def cloud_to_prod_env(self):
     return {}
 
@@ -429,7 +464,10 @@ _TEST_CASES = ['large_unary', 'empty_unary', 'ping_pong',
 _AUTH_TEST_CASES = ['compute_engine_creds', 'jwt_token_creds',
                     'oauth2_auth_token', 'per_rpc_creds']
 
-_HTTP2_TEST_CASES = ["tls", "framing"]
+_HTTP2_TEST_CASES = ['tls', 'framing']
+
+_HTTP2_BADSERVER_TEST_CASES = ['rst_after_header', 'rst_after_data', 'rst_during_data',
+                     'goaway', 'ping', 'max_streams']
 
 DOCKER_WORKDIR_ROOT = '/var/local/git/grpc'
 
@@ -550,13 +588,25 @@ def cloud_to_prod_jobspec(language, test_case, server_host_name,
 def cloud_to_cloud_jobspec(language, test_case, server_name, server_host,
                            server_port, docker_image=None):
   """Creates jobspec for cloud-to-cloud interop test"""
-  cmdline = bash_cmdline(language.client_cmd([
+  interop_only_options = [
       '--server_host_override=foo.test.google.fr',
       '--use_tls=true',
       '--use_test_ca=true',
+  ]
+  common_options = [
       '--test_case=%s' % test_case,
       '--server_host=%s' % server_host,
-      '--server_port=%s' % server_port]))
+  ]
+  if test_case in _HTTP2_BADSERVER_TEST_CASES:
+    # We are running the http2_badserver_interop test. Adjust command line accordingly.
+    offset = sorted(_HTTP2_BADSERVER_TEST_CASES).index(test_case)
+    client_options = common_options + ['--server_port=%s' %
+                                       (int(server_port)+offset)]
+    cmdline = bash_cmdline(language.client_cmd_http2interop(client_options))
+  else:
+    client_options = interop_only_options + common_options + ['--server_port=%s' % server_port]
+    cmdline = bash_cmdline(language.client_cmd(client_options))
+
   cwd = language.client_cwd
   environ = language.global_env()
   if docker_image:
@@ -590,13 +640,30 @@ def server_jobspec(language, docker_image):
   cmdline = bash_cmdline(
       language.server_cmd(['--port=%s' % _DEFAULT_SERVER_PORT]))
   environ = language.global_env()
+  if language.safename == 'http2':
+    # we are running the http2 interop server. Open next N ports beginning
+    # with the server port. These ports are used for http2 interop test
+    # (one test case per port). We also attach the docker container running
+    # the server to local network, so we don't have to mess with port mapping
+    port_args = [
+      '-p', str(_DEFAULT_SERVER_PORT+0),
+      '-p', str(_DEFAULT_SERVER_PORT+1),
+      '-p', str(_DEFAULT_SERVER_PORT+2),
+      '-p', str(_DEFAULT_SERVER_PORT+3),
+      '-p', str(_DEFAULT_SERVER_PORT+4),
+      '-p', str(_DEFAULT_SERVER_PORT+5),
+      '-p', str(_DEFAULT_SERVER_PORT+6),
+      '--net=host',
+    ]
+  else:
+    port_args = ['-p', str(_DEFAULT_SERVER_PORT)]
+
   docker_cmdline = docker_run_cmdline(cmdline,
                                       image=docker_image,
                                       cwd=language.server_cwd,
                                       environ=environ,
-                                      docker_args=['-p', str(_DEFAULT_SERVER_PORT),
-                                                   '--name', container_name])
-
+                                      docker_args=port_args +
+                                        ['--name', container_name])
   server_job = jobset.JobSpec(
           cmdline=docker_cmdline,
           environ=environ,
@@ -730,7 +797,12 @@ argp.add_argument('--http2_interop',
                   default=False,
                   action='store_const',
                   const=True,
-                  help='Enable HTTP/2 interop tests')
+                  help='Enable HTTP/2 client edge case testing. (Bad client, good server)')
+argp.add_argument('--http2_badserver_interop',
+                  default=False,
+                  action='store_const',
+                  const=True,
+                  help='Enable HTTP/2 server edge case testing. (Good client, bad server)')
 
 args = argp.parse_args()
 
@@ -757,6 +829,7 @@ languages = set(_LANGUAGES[l]
                       for x in args.language))
 
 http2Interop = Http2Client() if args.http2_interop else None
+http2InteropServer = Http2Server() if args.http2_badserver_interop else None
 
 docker_images={}
 if args.use_docker:
@@ -766,6 +839,9 @@ if args.use_docker:
   if args.http2_interop:
     languages_to_build.add(http2Interop)
 
+  if args.http2_badserver_interop:
+    languages_to_build.add(http2InteropServer)
+
   build_jobs = []
   for l in languages_to_build:
     job = build_interop_image_jobspec(l)
@@ -797,6 +873,14 @@ try:
     server_jobs[lang] = job
     server_addresses[lang] = ('localhost', job.mapped_port(_DEFAULT_SERVER_PORT))
 
+  if args.http2_badserver_interop:
+    # launch a HTTP2 server emulator that creates edge cases
+    lang = str(http2InteropServer)
+    spec = server_jobspec(http2InteropServer, docker_images.get(lang))
+    job = dockerjob.DockerJob(spec)
+    server_jobs[lang] = job
+    server_addresses[lang] = ('localhost', _DEFAULT_SERVER_PORT)
+
   jobs = []
   if args.cloud_to_prod:
     for server_host_name in args.prod_servers:
@@ -840,17 +924,18 @@ try:
     skip_server = []  # test cases unimplemented by server
     if server_language:
       skip_server = server_language.unimplemented_test_cases_server()
-    for language in languages:
-      for test_case in _TEST_CASES:
-        if not test_case in language.unimplemented_test_cases():
-          if not test_case in skip_server:
-            test_job = cloud_to_cloud_jobspec(language,
-                                              test_case,
-                                              server_name,
-                                              server_host,
-                                              server_port,
-                                              docker_image=docker_images.get(str(language)))
-            jobs.append(test_job)
+    if not args.http2_badserver_interop:
+      for language in languages:
+        for test_case in _TEST_CASES:
+          if not test_case in language.unimplemented_test_cases():
+            if not test_case in skip_server:
+              test_job = cloud_to_cloud_jobspec(language,
+                                                test_case,
+                                                server_name,
+                                                server_host,
+                                                server_port,
+                                                docker_image=docker_images.get(str(language)))
+              jobs.append(test_job)
 
     if args.http2_interop:
       for test_case in _HTTP2_TEST_CASES:
@@ -865,6 +950,17 @@ try:
                                           docker_image=docker_images.get(str(http2Interop)))
         jobs.append(test_job)
 
+    if args.http2_badserver_interop:
+      for language in languages:
+        for test_case in _HTTP2_BADSERVER_TEST_CASES:
+          test_job = cloud_to_cloud_jobspec(language,
+                                            test_case,
+                                            server_name,
+                                            server_host,
+                                            server_port,
+                                            docker_image=docker_images.get(str(language)))
+          jobs.append(test_job)
+
   if not jobs:
     print('No jobs to run.')
     for image in docker_images.itervalues():
diff --git a/tools/run_tests/run_performance_tests.py b/tools/run_tests/run_performance_tests.py
index b7b742d7af2ff34cb9fad4fb59989f44472c7ac2..d6eed3f5bddcd2c0f8911aed69e4a58fc0b69629 100755
--- a/tools/run_tests/run_performance_tests.py
+++ b/tools/run_tests/run_performance_tests.py
@@ -113,7 +113,7 @@ def create_qpsworker_job(language, shortname=None, port=10000, remote_host=None,
 
 
 def create_scenario_jobspec(scenario_json, workers, remote_host=None,
-                            bq_result_table=None):
+                            bq_result_table=None, server_cpu_load=0):
   """Runs one scenario using QPS driver."""
   # setting QPS_WORKERS env variable here makes sure it works with SSH too.
   cmd = 'QPS_WORKERS="%s" ' % ','.join(workers)
@@ -121,7 +121,9 @@ def create_scenario_jobspec(scenario_json, workers, remote_host=None,
     cmd += 'BQ_RESULT_TABLE="%s" ' % bq_result_table
   cmd += 'tools/run_tests/performance/run_qps_driver.sh '
   cmd += '--scenarios_json=%s ' % pipes.quote(json.dumps({'scenarios': [scenario_json]}))
-  cmd += '--scenario_result_file=scenario_result.json'
+  cmd += '--scenario_result_file=scenario_result.json '
+  if server_cpu_load != 0:
+      cmd += '--search_param=offered_load --initial_search_value=1000 --targeted_cpu_load=%d --stride=500 --error_tolerance=0.01' % server_cpu_load
   if remote_host:
     user_at_host = '%s@%s' % (_REMOTE_HOST_USERNAME, remote_host)
     cmd = 'ssh %s "cd ~/performance_workspace/grpc/ && "%s' % (user_at_host, pipes.quote(cmd))
@@ -129,7 +131,7 @@ def create_scenario_jobspec(scenario_json, workers, remote_host=None,
   return jobset.JobSpec(
       cmdline=[cmd],
       shortname='qps_json_driver.%s' % scenario_json['name'],
-      timeout_seconds=3*60,
+      timeout_seconds=12*60,
       shell=True,
       verbose_success=True)
 
@@ -318,7 +320,7 @@ Scenario = collections.namedtuple('Scenario', 'jobspec workers name')
 
 def create_scenarios(languages, workers_by_lang, remote_host=None, regex='.*',
                      category='all', bq_result_table=None,
-                     netperf=False, netperf_hosts=[]):
+                     netperf=False, netperf_hosts=[], server_cpu_load=0):
   """Create jobspecs for scenarios to run."""
   all_workers = [worker
                  for workers in workers_by_lang.values()
@@ -379,7 +381,8 @@ def create_scenarios(languages, workers_by_lang, remote_host=None, regex='.*',
               create_scenario_jobspec(scenario_json,
                                       [w.host_and_port for w in workers],
                                       remote_host=remote_host,
-                                      bq_result_table=bq_result_table),
+                                      bq_result_table=bq_result_table,
+                                      server_cpu_load=server_cpu_load),
               workers,
               scenario_json['name'])
           scenarios.append(scenario)
@@ -461,6 +464,9 @@ argp.add_argument('--netperf',
                   action='store_const',
                   const=True,
                   help='Run netperf benchmark as one of the scenarios.')
+argp.add_argument('--server_cpu_load',
+                  default=0, type=int,
+                  help='Select a targeted server cpu load to run. 0 means ignore this flag')
 argp.add_argument('-x', '--xml_report', default='report.xml', type=str,
                   help='Name of XML report file to generate.')
 argp.add_argument('--perf_args',
@@ -490,7 +496,6 @@ argp.add_argument('--skip_generate_flamegraphs',
                         'May be useful if "perf_args" arguments do not make sense for '
                         'generating flamegraphs (e.g., "--perf_args=stat ...")'))
 
-
 args = argp.parse_args()
 
 languages = set(scenario_config.LANGUAGES[l]
@@ -540,7 +545,8 @@ scenarios = create_scenarios(languages,
                            category=args.category,
                            bq_result_table=args.bq_result_table,
                            netperf=args.netperf,
-                           netperf_hosts=args.remote_worker_host)
+                           netperf_hosts=args.remote_worker_host,
+                           server_cpu_load=args.server_cpu_load)
 
 if not scenarios:
   raise Exception('No scenarios to run')
diff --git a/vsprojects/vcxproj/http2_client_main/http2_client_main.vcxproj b/vsprojects/vcxproj/http2_client_main/http2_client_main.vcxproj
new file mode 100644
index 0000000000000000000000000000000000000000..c94c346ed9943cdbefed5bd593021661dfe5de0b
--- /dev/null
+++ b/vsprojects/vcxproj/http2_client_main/http2_client_main.vcxproj
@@ -0,0 +1,206 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{8008C126-4B35-5A76-A795-39DA13DA57F4}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
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diff --git a/vsprojects/vcxproj/http2_client_main/http2_client_main.vcxproj.filters b/vsprojects/vcxproj/http2_client_main/http2_client_main.vcxproj.filters
new file mode 100644
index 0000000000000000000000000000000000000000..40e419134510680ccc93fee67d1a132df6a0e6d4
--- /dev/null
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diff --git a/vsprojects/vcxproj/interop_server_helper/interop_server_helper.vcxproj b/vsprojects/vcxproj/interop_server_helper/interop_server_helper.vcxproj
index 4c99988a34c482f55a4e8f9749ab54fa404db885..377cadc1a1ea1f4781930439f2ce36db9b9213ae 100644
--- a/vsprojects/vcxproj/interop_server_helper/interop_server_helper.vcxproj
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@@ -154,6 +154,9 @@
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