diff --git a/source/common/quic/codec_impl.cc b/source/common/quic/codec_impl.cc
index 0afcf65b99055..6ef3eb1be5940 100644
--- a/source/common/quic/codec_impl.cc
+++ b/source/common/quic/codec_impl.cc
@@ -71,6 +71,14 @@ QuicHttpClientConnectionImpl::QuicHttpClientConnectionImpl(
   session.set_max_inbound_header_list_size(max_request_headers_kb * 1024);
 }
 
+void QuicHttpClientConnectionImpl::goAway() {
+// TODO(alyssawilk) remove these guards once QUICHE has been updated to remove
+// the perspective check.
+#if defined(NDEBUG)
+  quic_client_session_.SendHttp3GoAway(quic::QUIC_PEER_GOING_AWAY, "client goaway");
+#endif
+}
+
 Http::RequestEncoder&
 QuicHttpClientConnectionImpl::newStream(Http::ResponseDecoder& response_decoder) {
   EnvoyQuicClientStream* stream =
diff --git a/source/common/quic/codec_impl.h b/source/common/quic/codec_impl.h
index 7faed7d94136f..b5136bb1b6313 100644
--- a/source/common/quic/codec_impl.h
+++ b/source/common/quic/codec_impl.h
@@ -70,8 +70,8 @@ class QuicHttpClientConnectionImpl : public QuicHttpConnectionImplBase,
   Http::RequestEncoder& newStream(Http::ResponseDecoder& response_decoder) override;
 
   // Http::Connection
-  void goAway() override { NOT_REACHED_GCOVR_EXCL_LINE; }
-  void shutdownNotice() override { NOT_REACHED_GCOVR_EXCL_LINE; }
+  void goAway() override;
+  void shutdownNotice() override {}
   void onUnderlyingConnectionAboveWriteBufferHighWatermark() override;
   void onUnderlyingConnectionBelowWriteBufferLowWatermark() override;
 
diff --git a/test/integration/multiplexed_integration_test.cc b/test/integration/multiplexed_integration_test.cc
index 0357402a6993a..58b9b6d129237 100644
--- a/test/integration/multiplexed_integration_test.cc
+++ b/test/integration/multiplexed_integration_test.cc
@@ -29,7 +29,6 @@ using ::testing::MatchesRegex;
 
 namespace Envoy {
 
-// TODO(#2557) fix all the failures.
 #define EXCLUDE_DOWNSTREAM_HTTP3                                                                   \
   if (downstreamProtocol() == Http::CodecType::HTTP3) {                                            \
     return;                                                                                        \
@@ -906,8 +905,7 @@ TEST_P(Http2IntegrationTest, GrpcRetry) { testGrpcRetry(); }
 
 // Verify the case where there is an HTTP/2 codec/protocol error with an active stream.
 TEST_P(Http2IntegrationTest, CodecErrorAfterStreamStart) {
-  // TODO(#16757) Needs HTTP/3 "bad frame" equivalent.
-  EXCLUDE_DOWNSTREAM_HTTP3;
+  EXCLUDE_DOWNSTREAM_HTTP3; // The HTTP/3 client has no "bad frame" equivalent.
   initialize();
   codec_client_ = makeHttpConnection(lookupPort("http"));
 
@@ -940,7 +938,7 @@ TEST_P(Http2IntegrationTest, Http2BadMagic) {
 }
 
 TEST_P(Http2IntegrationTest, BadFrame) {
-  EXCLUDE_DOWNSTREAM_HTTP3; // Needs HTTP/3 "bad frame" equivalent.
+  EXCLUDE_DOWNSTREAM_HTTP3; // The HTTP/3 client has no "bad frame" equivalent.
 
   initialize();
   std::string response;
@@ -956,7 +954,6 @@ TEST_P(Http2IntegrationTest, BadFrame) {
 // Send client headers, a GoAway and then a body and ensure the full request and
 // response are received.
 TEST_P(Http2IntegrationTest, GoAway) {
-  EXCLUDE_DOWNSTREAM_HTTP3; // QuicHttpClientConnectionImpl::goAway NOT_REACHED_GCOVR_EXCL_LINE
   config_helper_.prependFilter(ConfigHelper::defaultHealthCheckFilter());
   initialize();
 
diff --git a/test/integration/protocol_integration_test.cc b/test/integration/protocol_integration_test.cc
index 133dc3f87f0fb..a33c7bc0e83d4 100644
--- a/test/integration/protocol_integration_test.cc
+++ b/test/integration/protocol_integration_test.cc
@@ -53,12 +53,6 @@ void setDoNotValidateRouteConfig(
   route_config->mutable_validate_clusters()->set_value(false);
 };
 
-// TODO(#2557) fix all the failures.
-#define EXCLUDE_DOWNSTREAM_HTTP3                                                                   \
-  if (downstreamProtocol() == Http::CodecType::HTTP3) {                                            \
-    return;                                                                                        \
-  }
-
 TEST_P(ProtocolIntegrationTest, TrailerSupportHttp1) {
   config_helper_.addConfigModifier(setEnableDownstreamTrailersHttp1());
   config_helper_.addConfigModifier(setEnableUpstreamTrailersHttp1());