[117492] in North American Network Operators' Group
Re:
daemon@ATHENA.MIT.EDU (Florian Weimer)
Tue Sep 15 13:14:50 2009
From: Florian Weimer <fw@deneb.enyo.de>
To: Mikael Abrahamsson <swmike@swm.pp.se>
Date: Tue, 15 Sep 2009 17:13:36 +0000
In-Reply-To: <alpine.DEB.1.10.0909141937460.20805@uplift.swm.pp.se> (Mikael
Abrahamsson's message of "Mon, 14 Sep 2009 19:39:12 +0200 (CEST)")
Cc: nanog@nanog.org, Michael Ruiz <mruiz@telwestservices.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
* Mikael Abrahamsson:
>> What does exactly the message mean and how do I stabilize this? Any
>> help will be appreciated.
>
> This is most likely an MTU problem.
Does IOS enable PMTUD for BGP sessions by default these days? The 476
(or something like that) MTU is unlikely an issue. There could be a
forwarding bug which causes drops dependent on packet size, though.
