[112162] in North American Network Operators' Group
Re: lots of prepends
daemon@ATHENA.MIT.EDU (Randy Bush)
Thu Feb 19 17:58:03 2009
Date: Fri, 20 Feb 2009 07:57:57 +0900
From: Randy Bush <randy@psg.com>
To: "Paul Stewart" <pstewart@nexicomgroup.net>
In-Reply-To: <89D27DE3375BB6428DDCC2927489826A0203DF52@nexus.nexicomgroup.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> The only ill effect is if set it too low.... we tested it a bit
> at 20-30 AS path length range figuring we shouldn't see *much*
> and it was staggering over time. The unfortunate thing more
> related to your question is that we found some AS's that were
> prepending 40-50 times to ALL their upstreams so with max-as set
> too low we had no routing to them at all!
aha! an idiot filter. this could be a feature, not a bug.
randy
