RE: Troubleshoot MTU mismatch?

From: Alexander Arsenyev (GU/ETL) (alexander.arsenyev@ericsson.com)
Date: Wed Jul 21 2004 - 11:48:28 GMT-3

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BGP peer in its default configuration is unilikely to flap when there is a MTU mismatch,
see http://www.cisco.com/warp/public/459/highcpu-bgp.html#iptcpmtudisc .
So if it is flapping and config does NOT include PMTUD then it's something else.
HTH,
Cheers
Alex

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
CCIE
Sent: 19 July 2004 19:18
To: ccielab@groupstudy.com
Subject: Troubleshoot MTU mismatch?

Hi Group,

I search for a solution to successfully troubleshoot MTU mismatch between
devices (Serial link, Atm etc). Assume for example a BGP Peering is flapping
and you want to know if the Layer 2 connectivity is correct how you can
debug or troubleshoot types of MTU mismatch and correct them?

Regards

Carlos

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