Except when their primary path goes away and relatively few networks install the prepended route. It's all conjecture, but I like the 'in effort to defeat local pref' option. On Thu, Oct 23, 2008 at 10:53 AM, Tomas L. Byrnes <tomb@byrneit.net> wrote:
Not using that prepended route is exactly what the point of the prepend is, so that's not "punishment".
It may, in fact, be exactly what they're trying to get you to do.
-----Original Message----- From: Jon Lewis [mailto:jlewis@lewis.org] Sent: Wednesday, October 22, 2008 8:17 PM To: Mike Lewinski Cc: nanog@nanog.org Subject: Re: What's with all the long aspaths?
On Wed, 22 Oct 2008, Mike Lewinski wrote:
I'm sure they get the attention of NOCs around the world as messages like this show up on consoles
Oct 22 04:34:05 MDT: %BGP-6-BIGCHUNK: Big chunk pool request (306) for aspath. Replenishing with malloc
You might consider something like bgp maxas-limit 75 to exchange that log message for the less scarey Oct 22 06:34:09: %BGP-6-ASPATH: Long AS path ...
As an added bonus, you ignore their route while they're playing such games.
---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________