From: Joseph D. Phillips (josephdphillips@fastmail.us)
Date: Sun Jul 11 2004 - 15:00:51 GMT-3
Thanks!
----- Original message -----
From: "James" <james@towardex.com>
To: "Joseph D. Phillips" <josephdphillips@fastmail.us>
Date: Sun, 11 Jul 2004 13:49:45 -0400
Subject: Re: Sending community attribute to BGP peers
> Is there any harm in sending the community attribute to a peer that
> won't necessarily do anything with it? It's just adding an extra bit of
> information to each prefix advertised to a peer, correct?
As long as the community is not going to affect the routing of the peer,
it is OK.
For example, if you set an outbound route-map that sets no-export on the
way out,
your peer's AS won't export it outside of its AS.
In the real world, you may often see your upstream transit providers
sending you
their communities, to help you identify their routes. You may choose to
wipe these
communities at your discretion by applying inbound route-map that does
so.
-J
-- James Jun TowardEX Technologies, Inc. Technical Lead Network Design, Consulting, IT Outsourcing james@towardex.com Boston-based Colocation & Bandwidth Services cell: 1(978)-394-2867 web: http://www.towardex.com , noc: www.twdx.net
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