[147586] in North American Network Operators' Group
Re: local_preference for transit traffic?
daemon@ATHENA.MIT.EDU (Jeff Wheeler)
Thu Dec 15 02:10:05 2011
In-Reply-To: <CABO8Q6ThEL_rHYxoJ2bg8fKsfa3uPKS-EVBgu1EPu9ic73_rrA@mail.gmail.com>
Date: Thu, 15 Dec 2011 02:09:08 -0500
From: Jeff Wheeler <jsw@inconcepts.biz>
To: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Thu, Dec 15, 2011 at 1:07 AM, Keegan Holley
<keegan.holley@sungard.com> wrote:
> Had in interesting conversation with a transit AS on behalf of a customer
> where I found out they are using communities to raise the local preferenc=
e
That sounds like a disreputable practice.
While not quite as obvious, some large transit ASes, like Level3,
reset the origin to I (best) sometime between when they learn it and
when they announce it to their customers and peers. This similarly
causes them to suck in a bit more traffic than they might otherwise.
--=20
Jeff S Wheeler <jsw@inconcepts.biz>
Sr Network Operator=A0 /=A0 Innovative Network Concepts
