What's with all the long aspaths?

Jason Iannone jason.iannone at gmail.com
Thu Oct 23 13:44:13 CDT 2008


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 at 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 at lewis.org]
>>Sent: Wednesday, October 22, 2008 8:17 PM
>>To: Mike Lewinski
>>Cc: nanog at 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_________
>
>
>




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