diff --git a/tunnels/client/http2/helpers.h b/tunnels/client/http2/helpers.h
index 1051ff4d..d2a0ab03 100644
--- a/tunnels/client/http2/helpers.h
+++ b/tunnels/client/http2/helpers.h
@@ -32,8 +32,8 @@ static nghttp2_nv makeNV2(const char *name, const char *value, int namelen, int
 static void printFrameHd(const nghttp2_frame_hd *hd)
 {
     (void) hd;
-    // LOGD("[frame] length=%d type=%x flags=%x stream_id=%d\n", (int) hd->length, (int) hd->type, (int) hd->flags,
-    //      hd->stream_id);
+    LOGD("[frame] length=%d type=%x flags=%x stream_id=%d\n", (int) hd->length, (int) hd->type, (int) hd->flags,
+         hd->stream_id);
 }
 
 static void addStraem(http2_client_con_state_t *con, http2_client_child_con_state_t *stream)
@@ -139,10 +139,11 @@ static http2_client_con_state_t *createHttp2Connection(tunnel_t *self, int tid,
     con->line->chains_state[self->chain_index] = con;
 
     hevent_set_userdata(con->ping_timer, con);
-
     nghttp2_session_client_new2(&con->session, state->cbs, con, state->ngoptions);
-
-    nghttp2_settings_entry settings[] = {{NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, MAX_CONCURRENT_STREAMS}};
+    nghttp2_settings_entry settings[] = {
+        {NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, MAX_CONCURRENT_STREAMS},
+        {NGHTTP2_SETTINGS_MAX_FRAME_SIZE, (1U << 18)},
+        };
     nghttp2_submit_settings(con->session, NGHTTP2_FLAG_NONE, settings, ARRAY_SIZE(settings));
 
     con->state = kH2SendMagic;
diff --git a/tunnels/client/http2/http2_client.c b/tunnels/client/http2/http2_client.c
index f2162b95..2d00ce98 100644
--- a/tunnels/client/http2/http2_client.c
+++ b/tunnels/client/http2/http2_client.c
@@ -80,7 +80,7 @@ static bool trySendRequest(tunnel_t *self, http2_client_con_state_t *con, size_t
 
             shiftl(buf, GRPC_MESSAGE_HDLEN);
 
-            grpcMessageHdUnpack(&msghd, rawBufMut(buf));
+            grpcMessageHdPack(&msghd, rawBufMut(buf));
         }
         http2_frame_hd framehd;
 
diff --git a/tunnels/server/http2/helpers.h b/tunnels/server/http2/helpers.h
index 1413eb8b..98030cf9 100644
--- a/tunnels/server/http2/helpers.h
+++ b/tunnels/server/http2/helpers.h
@@ -28,8 +28,8 @@ static nghttp2_nv makeNv2(const char *name, const char *value, int namelen, int
 static void printFrameHd(const nghttp2_frame_hd *hd)
 {
     (void) hd;
-    // LOGD("[frame] length=%d type=%x flags=%x stream_id=%d\n", (int) hd->length, (int) hd->type, (int) hd->flags,
-    //      hd->stream_id);
+    LOGD("[frame] length=%d type=%x flags=%x stream_id=%d\n", (int) hd->length, (int) hd->type, (int) hd->flags,
+         hd->stream_id);
 }
 
 static void addStream(http2_server_con_state_t *con, http2_server_child_con_state_t *stream)
@@ -93,7 +93,10 @@ static http2_server_con_state_t *createHttp2Connection(tunnel_t *self, line_t *l
     con->line   = line;
     con->io     = io;
 
-    nghttp2_settings_entry settings[] = {{NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, MAX_CONCURRENT_STREAMS}};
+    nghttp2_settings_entry settings[] = {
+        {NGHTTP2_SETTINGS_MAX_CONCURRENT_STREAMS, MAX_CONCURRENT_STREAMS},
+        {NGHTTP2_SETTINGS_MAX_FRAME_SIZE, (1U << 18)},
+    };
     nghttp2_submit_settings(con->session, NGHTTP2_FLAG_NONE, settings, ARRAY_SIZE(settings));
     con->state = kH2SendSettings;
     return con;
diff --git a/tunnels/server/http2/http2_server.c b/tunnels/server/http2/http2_server.c
index afa0bd30..92032af2 100644
--- a/tunnels/server/http2/http2_server.c
+++ b/tunnels/server/http2/http2_server.c
@@ -275,7 +275,7 @@ static bool trySendResponse(tunnel_t *self, http2_server_con_state_t *con, size_
 
             shiftl(buf, GRPC_MESSAGE_HDLEN);
 
-            grpcMessageHdUnpack(&msghd, rawBufMut(buf));
+            grpcMessageHdPack(&msghd, rawBufMut(buf));
         }
 
         http2_frame_hd framehd;
@@ -420,24 +420,7 @@ static inline void downStream(tunnel_t *self, context_t *c)
     }
 }
 
-static void http2ServerUpStream(tunnel_t *self, context_t *c)
-{
-    upStream(self, c);
-}
-static void http2ServerPacketUpStream(tunnel_t *self, context_t *c)
-{
-    // LOGF("Http2Server: Http2 protocol dose not run on udp");
-    upStream(self, c);
-}
-static void http2ServerDownStream(tunnel_t *self, context_t *c)
-{
-    downStream(self, c);
-}
-static void http2ServerPacketDownStream(tunnel_t *self, context_t *c)
-{
-    // LOGF("Http2Server: Http2 protocol dose not run on udp");
-    downStream(self, c);
-}
+
 
 tunnel_t *newHttp2Server(node_instance_context_t *instance_info)
 {