Guest

Preview Tool

Cisco Bug: CSCvs28696 - CUBE fails to parse INVITE that has m=video line before m=audio in SDP

Last Modified

Apr 07, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.3.7

Description (partial)

Symptom:
INVITE with m=video line at first will be rejected on outbound leg

INVITE reaches CUBE

060032: Dec  1 20:15:49.103: //-1/xxxxxxxxxxxx/SIP/Msg/ccsipDisplayMsg:
Received: 
INVITE sip:3223@10.106.111.16:5060 SIP/2.0
Call-ID: 1-4081@10.106.111.25
CSeq: 1 INVITE
From: sipp <sip:sipp@10.106.111.25:5060>;tag=1
To: test <sip:3223@10.106.111.16:5060>
Max-Forwards: 69
Contact: <sip:10.106.111.25:5060;transport=UDP>
Allow-Events: refer
Content-Type: application/sdp
Min-SE: 400
Session-Expires: 10800
Allow: NOTIFY,REFER,CANCEL,ACK,PRACK,UPDATE,INVITE,SUBSCRIBE
Supported: 100rel,timer
Via: SIP/2.0/UDP 10.106.111.25:5060;branch=z9hG4bK-4081-1-0
Content-Length:  1009

v=0
o=- 7162239986 1 IN IP4 10.106.111.25
s=-
t=0 0
m=video 17756 RTP/AVP 100 96 96 98
c=IN IP4 10.106.111.25
b=AS:4000
b=TIAS:4000000
a=rtpmap:100 VP8/90000
a=rtcp-fb:100 nack
a=rtcp-fb:100 ccm fir
a=rtcp-fb:100 nack pli
a=rtpmap:96 H264/90000
a=fmtp:96 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640c1f
a=rtcp-fb:96 nack
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack pli
a=rtpmap:96 H264/90000
a=fmtp:96 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f
a=rtcp-fb:96 nack
a=rtcp-fb:96 ccm fir
a=rtcp-fb:96 nack pli
a=rtpmap:98 H264/90000
a=fmtp:98 profile-level-id=42801F;packetization-mode=0;level-asymmetry-allowed=1
a=rtcp-fb:98 nack
a=rtcp-fb:98 ccm fir
a=rtcp-fb:98 nack pli
a=sendrecv
a=content:main
a=label:11
m=audio 6000 RTP/AVP 0 8 110 113 126
c=IN IP4 10.106.111.25
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:110 telephone-event/48000
a=rtpmap:113 telephone-event/16000
a=rtpmap:126 telephone-event/8000
a=sendrecv

060910: Dec  1 20:15:49.154: //89/331DA65880B1/SIP/Msg/ccsipDisplayMsg:
Sent: 
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.106.111.25:5060;branch=z9hG4bK-4081-1-0
From: sipp <sip:sipp@10.106.111.25:5060>;tag=1
To: test <sip:3223@10.106.111.16:5060>
Date: Sun, 01 Dec 2019 20:15:49 GMT
Call-ID: 1-4081@10.106.111.25
CSeq: 1 INVITE
Allow-Events: telephone-event
Server: Cisco-SIPGateway/IOS-16.3.7
Session-ID: 00000000000000000000000000000000;remote=a2efff5ff48f5d659ac506d4df5aa13e
Content-Length: 0

062493: Dec  1 20:15:49.218: //89/331DA65880B1/SIP/Msg/ccsipDisplayMsg:
Sent: 
SIP/2.0 503 Service Unavailable
Via: SIP/2.0/UDP 10.106.111.25:5060;branch=z9hG4bK-4081-1-0
From: sipp <sip:sipp@10.106.111.25:5060>;tag=1
To: test <sip:3223@10.106.111.16:5060>;tag=A9938D64-248F
Date: Sun, 01 Dec 2019 20:15:49 GMT
Call-ID: 1-4081@10.106.111.25
CSeq: 1 INVITE
Allow-Events: telephone-event
Warning: 399 10.106.111.16 "Transcoder Not Configured"
Server: Cisco-SIPGateway/IOS-16.3.7
Reason: Q.850;cause=47
Session-ID: 00000000000000000000000000000000;remote=a2efff5ff48f5d659ac506d4df5aa13e
Session-Expires:  1800
Content-Length: 0

Conditions:
when CUBE receives INVITE with m=video line at first before m=audio in SDP
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.