[132015] in North American Network Operators' Group
RE: AS path question.
daemon@ATHENA.MIT.EDU (George Bonser)
Thu Nov 11 02:53:06 2010
Date: Wed, 10 Nov 2010 23:52:55 -0800
In-reply-to: <Pine.LNX.4.61.1011102126240.5148@soloth.lewis.org>
From: "George Bonser" <gbonser@seven.com>
To: "Jon Lewis" <jlewis@lewis.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> it very hard to believe anyone legitimately needs an as-path length
> anywhere near that long". Worst case, someone is silly with their
> number
> of prepends, we don't see their route. I can't say how long I've been
> doing this...it predates our rancid setup, which means >6 years.
> Though
> it's caused numerous dropped routes, it hasn't generated a single
> complaint.
>=20
> In your opinion, is filtering of BGP routes based on prefix length
also
> a
> sign of ignorance? Everyone should just be letting all the crap
> through?
There is the argument that anyone with that many prepends doesn't really
want you to see that route anyway and if anything changed on their end
where they really wanted people to see the route and use it, they would
reduce the prepends.
