Ethereal-users: Re: [Ethereal-users] Real time qos statistics

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From: Ulf Lamping <ulf.lamping@xxxxxx>
Date: Wed, 12 Oct 2005 21:56:44 +0200
Aisling O'Driscoll wrote:


Hello,

I was wondering if someone could point me in the right direction....I
need to develop a real time voip traffic monitoring application. So
basically I want Ethereal to filter the rtp traffic and then pass the
jitter, delay and packet loss statistics to my application in real
time...

What I'm confused about is this...I know I can start an ethereal
capture with an rtp filter and after I press stop, analyse the QoS
statistics...But is there some way to start an ethereal capture and
without stopping the capture (i.e. real time) filter out QoS
statistics every 5 seconds or so?....Would tethereal be useful for
this if its possible? (and am I correct in thinking tethereal is a
command line version of ethereal?)

Yes, tethereal is the command line version of Ethereal.
I don't know much of RTP, but beware about the Monitoring section of http://wiki.ethereal.com/NetworkTroubleshooting/Overview 

Basically, (T)Ethereal will run out of memory if running "too long".

Regards, ULFL