diff --git a/webrtc/p2p/base/p2ptransportchannel.cc b/webrtc/p2p/base/p2ptransportchannel.cc
index 9f25cd2755..fc2a6d9eba 100644
--- a/webrtc/p2p/base/p2ptransportchannel.cc
+++ b/webrtc/p2p/base/p2ptransportchannel.cc
@@ -310,6 +310,9 @@ TransportChannelState P2PTransportChannel::ComputeState() const {
 
 void P2PTransportChannel::SetIceParameters(const IceParameters& ice_params) {
   ASSERT(worker_thread_ == rtc::Thread::Current());
+  LOG(LS_INFO) << "Set ICE ufrag: " << ice_params.ufrag
+               << " pwd: " << ice_params.pwd << " on transport "
+               << transport_name();
   ice_parameters_ = ice_params;
   // Note: Candidate gathering will restart when MaybeStartGathering is next
   // called.
@@ -434,6 +437,9 @@ const IceConfig& P2PTransportChannel::config() const {
 
 void P2PTransportChannel::MaybeStartGathering() {
   if (ice_parameters_.ufrag.empty() || ice_parameters_.pwd.empty()) {
+    LOG(LS_ERROR) << "Cannot gather candidates because ICE parameters are empty"
+                  << " ufrag: " << ice_parameters_.ufrag
+                  << " pwd: " << ice_parameters_.pwd;
     return;
   }
   // Start gathering if we never started before, or if an ICE restart occurred.
diff --git a/webrtc/p2p/base/transportcontroller.cc b/webrtc/p2p/base/transportcontroller.cc
index de98df23bc..bd6ee66871 100644
--- a/webrtc/p2p/base/transportcontroller.cc
+++ b/webrtc/p2p/base/transportcontroller.cc
@@ -474,6 +474,7 @@ bool TransportController::SetLocalTransportDescription_n(
     SetIceRole(new_ice_role);
   }
 
+  LOG(LS_INFO) << "Set local transport description on " << transport_name;
   return transport->SetLocalTransportDescription(tdesc, action, err);
 }
 
@@ -493,6 +494,7 @@ bool TransportController::SetRemoteTransportDescription_n(
     return true;
   }
 
+  LOG(LS_INFO) << "Set remote transport description on " << transport_name;
   return transport->SetRemoteTransportDescription(tdesc, action, err);
 }