[nsp] BGP dmzlink-bw?

Jared Mauch jared at puck.nether.net
Tue Nov 25 15:28:24 EST 2003

On Tue, Nov 25, 2003 at 03:17:51PM -0500, Matthew Crocker wrote:
> >	You may be able to tweak this by setting:
> >
> >router bgp 1
> > bgp always-compare-med
> > bgp log-neighbor-changes
> > bgp deterministic-med
> >
> >>I was planning on doing.  I was digging through the docs when I found
> >>the dmzlink-bw stuff.
> >>
> >>I guess I can enable it and see what works...
> >
> >
> >	Verio and Sprint allow you to influence your traffic by
> >sending them communities.
> >
> >	These links may be helpful to you:
> >
> >http://info.us.bb.verio.net/routing.html#communities
> >http://www.sprintlink.net/policy/bgp.html
> >
> >	I would suggest asking your other provider if they have similar
> >communities available for use.  This is probally your best bet for
> >managing your traffic patterns in an inteligent and effetive manner.
> >
> Sprint/Verio communities are for inbound traffic which is pretty well 
> load balanced.  I'm more concerned with outbound balancing
> Thanks for the help

	Using the always-compare-med and deterministic-med
whould aide in the outbound balancing.  if you get a route update
which changes the metric to be a better path, you will switch
your path and advert this change to the rest of your bgp speaking

	You may also want to just do simple metric math
or stomp the metrics received by your upstreams
to let as-path be your only decision maker.

	- jared

Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.

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