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 preference
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.