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Mahesh Kumar
Beginner

Zoom Calls Drops RTP-Media Traffic in 15-30secs

After the call establishment to Zoom meeting from Cisco endpoint(all model and different versions) the media RTP traffic stays only for 15-30secs(we can see and hear each other) and get VCS 408 Request Timeout Error, not sure what is causing the issue.

 

Setup: Endpoint -> VCSc -> Direct SIP Trunk to Zoom thru cloud connection.

 

Here is the media failed endpoint log looks like, at end of the log you will find "No incoming video and No incoming data" before the media stops.

 

2020-03-16T18:59:55.364-04:00 a9 appl[2438]: MainEvents I: LayoutUpdated ...frame[GUI] gui p=1 src=1 ig=-1 CSISceneId=0 placeholder=0 avatar=0 reso=-1/-1 crop=0/0/1000/1000 x=0 y=0 w=10000 h=10000 l=0 b=0 m=0 letterbox fcref=0 boardSessionId=0

2020-03-16T18:59:57.416-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Incoming <= 200 OK, CSeq: 100 INVITE, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T18:59:57.417-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Outgoing => ACK, CSeq: 100 ACK, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T18:59:57.823-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2429 -> 204.141.31.102:3819

2020-03-16T19:00:00.108-04:00 a9 appl[2438]: AdaptationResilience W:  [wqos] CNetworkMonitor::HandleFeedback, drop 0 receive rate feedback this=0xb01afb68

2020-03-16T19:00:00.916-04:00 a9 appl[1408]: Last message 'AdaptationResilience' repeated 8 times, suppressed by syslog-ng on (none)

2020-03-16T19:00:00.915-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2348 -> 204.141.31.102:3812

2020-03-16T19:00:00.926-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:00.947-04:00 a9 appl[1408]: Last message 'RTP I: ICMP: 204.141' repeated 1 times, suppressed by syslog-ng on (none)

2020-03-16T19:00:00.946-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2348 -> 204.141.31.102:3812

2020-03-16T19:00:00.957-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:01.426-04:00 a9 appl[1408]: Last message 'RTP I: ICMP: 204.141' repeated 1 times, suppressed by syslog-ng on (none)

2020-03-16T19:00:01.425-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Incoming <= 200 OK, CSeq: 100 INVITE, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:01.428-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Outgoing => ACK, CSeq: 100 ACK, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:01.917-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2348 -> 204.141.31.102:3812

2020-03-16T19:00:03.692-04:00 a9 appl[1408]: Last message 'RTP I: ICMP: 204.141' repeated 1 times, suppressed by syslog-ng on (none)

2020-03-16T19:00:03.692-04:00 a9 appl[2438]: MainEvents I: InputAudioChannelChanged(p=239,gid=3116) msctrlId=2625 channels=2 encryption=AES-128 muted=False protocol=Off

2020-03-16T19:00:03.919-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:04.295-04:00 a9 appl[2438]: DEC_FSM-0 I: no incoming data

2020-03-16T19:00:04.920-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:05.446-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Incoming <= 200 OK, CSeq: 100 INVITE, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:05.448-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Outgoing => ACK, CSeq: 100 ACK, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:05.921-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:06.912-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2348 -> 204.141.31.102:3812

2020-03-16T19:00:09.452-04:00 a9 appl[1408]: Last message 'RTP I: ICMP: 204.141' repeated 2 times, suppressed by syslog-ng on (none)

2020-03-16T19:00:09.451-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Incoming <= 200 OK, CSeq: 100 INVITE, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:09.452-04:00 a9 appl[2438]: SipPacket I: SIP Msg: Outgoing => ACK, CSeq: 100 ACK, Remote: VCSc:5061, CallId: 654ef012463d7b200315a519139d94cd

2020-03-16T19:00:09.924-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2348 -> 204.141.31.102:3812

2020-03-16T19:00:10.900-04:00 a9 appl[2438]: DEC_FSM-0 I: no incoming video

2020-03-16T19:00:10.924-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:11.208-04:00 a9 appl[2438]: MainEvents I: LayoutUpdated(p=1) outputNo=1 og=109

2020-03-16T19:00:11.208-04:00 a9 appl[2438]: MainEvents I: LayoutUpdated ...frame[GUI] gui p=1 src=1 ig=-1 CSISceneId=0 placeholder=0 avatar=0 reso=-1/-1 crop=0/0/1000/1000 x=0 y=0 w=10000 h=10000 l=0 b=0 m=0 letterbox fcref=0 boardSessionId=0

2020-03-16T19:00:11.925-04:00 a9 appl[2438]: RTP I: ICMP: 204.141.31.102 type: Destination Unreachable(1), unreachable port, Cisco endpoint:2366 -> 204.141.31.102:3814

2020-03-16T19:00:12.411-04:00 a9 appl[2438]: MainEvents I: PresentationPreviewStarted() instance=1 input 2 autoStartDesktop

2020-03-16T19:00:12.611-04:00 a9 appl[2438]: MainEvents I: LayoutUpdated(p=1) outputNo=1 og=109

 

2 REPLIES 2
Wayne DeNardi
VIP Advisor

When you're seeing consistent timeouts or drops in audio or video, it is almost always a firewall issue.

Wayne
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Please remember to rate responses and to mark your question as answered if appropriate.

Okay, in the packet capture i see the VCS is not sending ACK and idle wait time is 2690secs and the re-transmission starts again.

The idle timer shows up after 44min after successful call in the syslogs.

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