diff --git a/api_gb.go b/api_gb.go
index e3c145a..c7bb489 100644
--- a/api_gb.go
+++ b/api_gb.go
@@ -102,6 +102,8 @@ func (api *ApiServer) OnGBSourceCreate(v *SourceSDP, w http.ResponseWriter, r *h
 	response.Addr = net.JoinHostPort(stream.AppConfig.PublicIP, strconv.Itoa(port))
 	response.Urls = stream.GetStreamPlayUrls(v.Source)
 	response.SSRC = ssrc
+
+	log.Sugar.Infof("创建国标源成功, addr: %s, ssrc: %d", response.Addr, ssrcValue)
 	httpResponseOK(w, response)
 }
 
diff --git a/stream/source.go b/stream/source.go
index 5ad3b91..02de79e 100644
--- a/stream/source.go
+++ b/stream/source.go
@@ -472,7 +472,7 @@ func (s *PublishSource) doAddSink(sink Sink, resume bool) bool {
 	}
 
 	// 新建传输流，发送已经缓存的音视频帧
-	if !exist && AppConfig.GOPCache && s.existVideo {
+	if !exist && AppConfig.GOPCache && s.existVideo && TransStreamGBCascadedForward != transStream.GetProtocol() {
 		s.DispatchGOPBuffer(transStream)
 	}
 
@@ -828,7 +828,9 @@ func (s *PublishSource) OnPacket(packet *avformat.AVPacket) {
 
 		// 分发给各个传输流
 		for _, transStream := range s.TransStreams {
-			s.DispatchPacket(transStream, packet)
+			if TransStreamGBCascadedForward != transStream.GetProtocol() {
+				s.DispatchPacket(transStream, packet)
+			}
 		}
 	}