[61184] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: Extreme + Nachi = ipfdb overflow

daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Mon Aug 25 17:17:22 2003

Date: Mon, 25 Aug 2003 23:08:04 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@merit.edu
In-Reply-To: <20030825200335.GR79329@overlord.e-gerbil.net>
Errors-To: owner-nanog-outgoing@merit.edu


On Mon, 25 Aug 2003, Richard A Steenbergen wrote:

> At least some of the other vendors have workarounds (lame as they might be
> *coughnetaggcough*), or newer supervisors with FIBs, but I'm not aware of
> anything you can do to make an L3 Barney Switch behave well under a random
> dest flood.

The options in the market that I know of in the $3k-$8k range either has a
very small routing table (Cisco 3550 for instance) or has a large route
cache (Extreme Summit i-plattform is a good example). So it's either a
3550 with a lame low number of routes and mac addresses and memory that
behaves well under random destination flood, or it's Extreme with a good
number of mac addresses and routes that normally does everything it
should, but behaves badly under random destination load.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se


home help back first fref pref prev next nref lref last post