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Wireshark-users: Re: [Wireshark-users] voip troubleshooting

From: "Frank Bulk" <frnkblk@xxxxxxxxx>
Date: Sat, 9 Dec 2006 14:33:31 -0600
Will:
 
Here's a great article to get your started:
Don't worry if your capture gets your more than just the RTP traffic, unless you're moving Mbps over that wireless link.  Wireshark's RTP stream analysis will automagically select just the RTP streams to analyze.
 
Frank


From: William Irving Zumwalt [mailto:wizumwalt@xxxxxxxxx]
Sent: Saturday, December 09, 2006 2:30 PM
To: frnkblk@xxxxxxxxx; Community support list for Wireshark
Subject: Re: [Wireshark-users] voip troubleshooting

What is jitter? And, is there anything around that might help me configure for capturing only RTP (if I understand correctly, the VoIP protocols ride on top of RTP which rides on top of IP?) and making sense of what's going on?

On 12/9/06, Frank Bulk <frnkblk@xxxxxxxxx> wrote:
Yes Wireshark includes RTP stream analysis including latency and jitter.
 
Frank


From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of William Irving Zumwalt
Sent: Saturday, December 09, 2006 12:00 AM
To: wireshark-users@xxxxxxxxxxxxx
Subject: [Wireshark-users] voip troubleshooting

Hi all,

I hope I can use wireshark for this task I have.

There's two way voice traffic going on and at one point the IP is sent across radios. The problem is that at some point, the sound comes through delayed, though it always comes through complete. It sounds as if theres buffereing taking place and the voice just stops, then continues. I'm thinking maybe it would be something like one radio is not transmitting strong enough which means some packet ACKnowledgements might not be making it back to the voip source on the TCP network, but I need to see what the packet conversation actually looks like to figure this out.

I was hoping wireshark might be a good tool here to help me troubleshoot what's going on.

Any help, suggestions, comments on what to look for would be greatly appreciated since I haven't yet done this.

Will


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