Wireshark-users: Re: [Wireshark-users] Latency in RTP streams

From: Patrice Bertin <patrice.bertin94@xxxxxxxxx>
Date: Thu, 06 Oct 2011 16:10:52 +0200
I got it. Thank you very much!

Regards,

Patrice


El jue, 06-10-2011 a las 15:38 +0200, RUOFF, LARS (LARS)** CTR **
escribió:
> Hi,
> 
> The "X" on the stream appears if at least one packet is marked non-OK.
> non-OK currently includes:
> * Comfort noise (PT=13 or PT=19)
> * Wrong sequence nr.
> * Changes in Payload type (PT)
> * Incorrect timestamp
> * Marker missing?
> 
> for details, see gtk/rtp_analysis.c
> As you can see, there's no check concerning the latency or framing.
> 
> For other info around RTP analysis, see http://wiki.wireshark.org/RTP_statistics
> 
> Regards,
> Lars
>  
> 
> -----Original Message-----
> From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of Patrice Bertin
> Sent: jeudi 6 octobre 2011 15:19
> To: wireshark-users@xxxxxxxxxxxxx
> Subject: [Wireshark-users] Latency in RTP streams
> 
> Hi everybody,
> 
> I have a capture example of a SIP call with G711 codec.
> Looking at the RTP streams, the final field shows an X which normally means that we have a VoIP related problem. 
> By selecting the problematic stream and analysing it, wireshark provides a packet-by-packet look at the stream. 
> The thing I don't understand, is why does it give me the status "OK"
> everywhere if I have the famous X and especially when I have a latency of 5843.74 ms (cf the screencapture joined in the mail).
> Other thing, which values Wireshark put for the latency and jitter? Is it possible to modify it?
> 
> I hope this is understandable enough.
> 
> Thanks for your reply
> 
> 
> Patrice  
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