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Network Security Security-Basics
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RE: jitter testing

Subject: RE: jitter testing
Date: Fri, 29 Feb 2008 13:36:56 +0200
 

-----Original Message-----
From: listbounce@securityfocus.com 
[mailto:listbounce@securityfocus.com] On Behalf Of markus sesser
Sent: 27. helmikuuta 2008 15:43
To: security-basics@securityfocus.com
Subject: jitter testing

Hi,

Do anybody know how to measure delay variation (jitter) in layer2/3 
networks?
I'm looking for system- or freeware-tools to do this (no 
commercial tools!).


If You do have Cisco switches/routers (others may apply too) You can use
built-in measuring capabilities. For Cisco IOS-based switches look for
"rtr responder". You can read results from the IOS directly. 

To graph results You can use eg. Cacti. See http://www.cacti.net/ 
Cacti needs additional configuration to be able to collect & graph rtr
data. See http://forums.cacti.net/about4136-0-asc-0.html


-- 
Harri

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