Summary:ASTERISK-18611: RTP packets being repeated and random sequence numbers are being skipped
Reporter:Jason Legault (jlegault)Labels:
Date Opened:2011-09-22 20:54:13Date Closed:2011-10-10 15:08:31
Versions: Frequency of
Environment:Debian Linux 2.6.26-2-amd64Attachments:
Description:I'm running and getting complaints of bad quality.  I pulled a tshark trace of all RTP and see two weird things.

1) I see the exact same rtp packet with the same sequence # being sent out many times. The times between the re-sends are very small. Sometimes the same packet will get sent up to 20 times.  This can occur anywhere from 40-50 times during a 30 second call.  Wireshark actually shows the call as negative packet loss (sometimes up to -300%).  

2) In the same call, I'll see sequence numbers skip, for example one packet was 23338 and the next one was 23344.  If this was an inbound packet I'd blame the network, but it's an outbound packet from the server I'm running the trace on.

Any ideas?

Comments:By: Leif Madsen (lmadsen) 2011-09-26 08:44:24.520-0500

Impossible to tell without traces. Please provide a SIP trace and all relevant configuration data in order to be able to reproduce this, or clearly show what is going on.

By: Leif Madsen (lmadsen) 2011-09-26 08:44:37.452-0500

Assigned to reporter until feedback and data provided.

By: Paul Belanger (pabelanger) 2011-10-10 15:08:25.669-0500

Suspended due to lack of activity. Please request a bug marshal in #asterisk-bugs on the IRC network irc.freenode.net to reopen the issue should you have the additional information requested.  Further information can be found at http://www.asterisk.org/developers/bug-guidelines