Wireshark mailing list archives
Re: Reason for RTP Pb?
From: Bill Meier <wmeier () newsguy com>
Date: Tue, 11 Sep 2012 22:28:01 -0400
On 9/11/2012 8:35 PM, Rob Bosch wrote:
I've been trying to figure out the logic behind the Pb? column in the RTP Stream analysis. I have a VOIP RTP stream I captured that has these characteristics: Payload: g711U Packets: 15091 Lost: 0 (0.0%) Max Delta: 40.25ms (all but one packet falls into the 19 to 21 range) Max Jitter: 3.63 Mean Jitter: 0.70 Pb?: X When I analyze the stream, there are no packets with a status that is not [Ok]. So why is the stream marked as a problem? By the way, all the RTP streams have the an X in the "Pb?" column. I'm sure I'm missing something simple.
A quick look at the current RTP code indicates that "X" should be set in the "Pb?" column only if the analysis for that stream shows one or more frames with a status of either "Wrong sequence nr." or "Incorrect timestamp" intead of "OK".
If that's not the case (as you indicate above) then, if possible, please attach the capture file to a bug report (bugs.wireshark.org) so that the issue can be looked at.
If necessary, the bug can be marked private so that the capture file (and bug) can be seen only by the Wireshark core developers.
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Current thread:
- Reason for RTP Pb? Rob Bosch (Sep 11)
- Re: Reason for RTP Pb? Bill Meier (Sep 11)
- <Possible follow-ups>
- Reason for RTP Pb? Rob Bosch (Sep 12)