[c-nsp] Opinions - sup720 Weirdness?

[christian.macnevin at uk.bnpparibas.com]

On that note, some time ago when I was working with 6500s using 720 modules
with 12.2(17d)SXB4, we found a bug which screwed up any packets following a
default route within a VRF. I also heard tales of all the LDP neighbours
needing to be pinged before a routing change affectnig a default route
would start routing properly again.

Does this sort of thing persist? Or are the current code releases more
mature? I'm looking to maybe recommend the 7600s as the next strategic
platform here, so if they're going to inherit the 7500s reputation for bug
vulnerability, it'd be handy to know in advance..

Cheers,
Christian




Internet
mbernico at illinois.net - 12/04/2005 21:45


To:    christopher_a_kane, Christian MACNEVIN

cc:    cisco-nsp-bounces, cisco-nsp


Subject:    RE: [c-nsp] DOS Mitigation on MPLS Networks


This technique does work in a VRF as well, however I'd recommend being
careful and test a lot...

I've seen much weirdness when using recursive routes inside a VRF,
especially on the 7600.  The issues with the 7600 are resolved in
12.2.18SXD4, but I'd tread lightly.

Mike Bernico


-----Original Message-----
From: christopher_a_kane at bankone.com
[mailto:christopher_a_kane at bankone.com]
Sent: Tuesday, April 12, 2005 11:34 AM
To: christian.macnevin at uk.bnpparibas.com
Cc: cisco-nsp-bounces at puck.nether.net; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] DOS Mitigation on MPLS Networks

Have you had a chance to review and consider some of the popular
methods?
(maybe not related specifically to MPLS);

http://www.nanog.org/mtg-0110/greene.html

Here is a listing from the NANOG archives with several links;

http://www.merit.edu/mail.archives/nanog/2004-09/msg00827.html

-chris

Chris Kane
CCIE #14430
JP Morgan Chase - Infrastructure Operations Center
(614) 213-2923





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