[132003] in North American Network Operators' Group
Re: AS path question.
daemon@ATHENA.MIT.EDU (Scott Weeks)
Wed Nov 10 18:44:40 2010
Date: Wed, 10 Nov 2010 15:44:33 -0800
From: "Scott Weeks" <surfer@mauigateway.com>
To: <nanog@nanog.org>
Reply-To: surfer@mauigateway.com
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
--- Valdis.Kletnieks@vt.edu wrote:
From: Valdis.Kletnieks@vt.edu
One has to wonder how many places are using the prepend-me-harder
commands to do traffic engineering, and have absolutely no clue that
their prepends are having the opposite effect because the prefix is
being dropped entirely by some AS's.
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Do you think (or is there evidence) that very many ASs use maxas-limit type commands? I have never used it and never had any problems...
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I suppose the exact same issue applies for those places that deaggregate
in an attempt to to TE, and the de-aggregated prefixes get munched by
somebody's prefix-length filter.
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Only if they're longer than a /24, though; yes? I imagine no one really filters shorter than a /24 these days.
scott
