North American Network Operators Group

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Re: AS701 peer local-pref?

  • From: Jared Mauch
  • Date: Sun Dec 16 04:21:42 2001

	they could just be relying on as_path+bgp bestpath

	but yeah, i personally prefer a model of
localprefs in this order (highest first obviously)

	this puts traffic across links that you get paid for,
you get for (free?) a lower cost than upstream/transit then
the most expensive link.

	- jared

On Sun, Dec 16, 2001 at 01:07:39AM -0800, Mike Leber wrote:
> If they set local pref for both peers and customers to 100 how do they
> ensure that the customer transit routes are announced to peers?
> The reason I ask this is because if a customer announces a customer of
> theirs to you that a peer also has as a customer you will have equal
> length routes for the same destination AS.  While there are many ways to
> deterministicly prefer customer routes, local pref is the most common.
Jared Mauch  | pgp key available via finger from [email protected]
clue++;      |  My statements are only mine.