diff --git a/webrtc/RtpExt.cpp b/webrtc/RtpExt.cpp
index 5cbdbf56..51e40b01 100644
--- a/webrtc/RtpExt.cpp
+++ b/webrtc/RtpExt.cpp
@@ -582,7 +582,7 @@ RtpExt RtpExtContext::changeRtpExtId(const RtpHeader *header, bool is_recv, stri
         if (is_recv) {
             auto it = _rtp_ext_id_to_type.find(pr.first);
             if (it == _rtp_ext_id_to_type.end()) {
-                WarnL << "接收rtp时,忽略不识别的rtp ext, id=" << (int) pr.first;
+                //TraceL << "接收rtp时,忽略不识别的rtp ext, id=" << (int) pr.first;
                 pr.second.clearExt();
                 continue;
             }
@@ -598,7 +598,7 @@ RtpExt RtpExtContext::changeRtpExtId(const RtpHeader *header, bool is_recv, stri
             pr.second.setType((RtpExtType) pr.first);
             auto it = _rtp_ext_type_to_id.find((RtpExtType) pr.first);
             if (it == _rtp_ext_type_to_id.end()) {
-                WarnL << "发送rtp时, 忽略不被客户端支持rtp ext:" << pr.second.dumpString();
+                //TraceL << "发送rtp时, 忽略不被客户端支持rtp ext:" << pr.second.dumpString();
                 pr.second.clearExt();
                 continue;
             }
diff --git a/webrtc/WebRtcTransport.cpp b/webrtc/WebRtcTransport.cpp
index c5e03ffd..9c8a88a8 100644
--- a/webrtc/WebRtcTransport.cpp
+++ b/webrtc/WebRtcTransport.cpp
@@ -816,7 +816,7 @@ void WebRtcTransportImp::onSendRtp(const RtpPacket::Ptr &rtp, bool flush, bool r
 #endif
     } else {
         //发送rtx重传包
-        TraceL << "send rtx rtp:" << rtp->getSeq();
+        //TraceL << "send rtx rtp:" << rtp->getSeq();
     }
     pair<bool/*rtx*/, MediaTrack *> ctx{rtx, track.get()};
     sendRtpPacket(rtp->data() + RtpPacket::kRtpTcpHeaderSize, rtp->size() - RtpPacket::kRtpTcpHeaderSize, flush, &ctx);
@@ -875,6 +875,10 @@ void WebRtcTransportImp::onShutdown(const SockException &ex){
 
 void WebRtcTransportImp::setSession(Session::Ptr session) {
     _history_sessions.emplace(session.get(), session);
+    if (_selected_session) {
+        InfoL << "network exchange: " << _selected_session->get_peer_ip() << ":" << _selected_session->get_peer_port()
+              << " -> " << session->get_peer_ip() << ":" << session->get_peer_port();
+    }
     _selected_session = std::move(session);
     unrefSelf();
 }