[140397] in North American Network Operators' Group
Downstream Usage-BGP Communites
daemon@ATHENA.MIT.EDU (Nick Olsen)
Tue May 10 17:52:48 2011
From: "Nick Olsen" <nick@flhsi.com>
To: <nanog@nanog.org>
Date: Tue, 10 May 2011 17:52:39 -0400
Reply-To: nick@flhsi.com
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Greetings NANOG,
Was hoping to gain some insight into common practice with using BGP
Communities downstream.
For instance:
We peer with AS100 (example)
AS100 peers with TW Telecom (AS4323).
Since I happen to know that AS100 doesn't sanitize the communities I send
with my routes. I can take advantage of TW Telecom's BGP communities for
traffic engineering. Such as 4323:666 (Keep in TWTC Backbone). Would this
be something that is generally frowned upon? Still under the assumption
that the communities aren't scrubbed off my routes. Could I do this with
other AS's beyond TW Telecom? Such as TW's peering with Global Crossing
(AS3549)?
Nick Olsen
Network Operations (855) FLSPEED x106
