[43471] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Communities

daemon@ATHENA.MIT.EDU (Iljitsch van Beijnum)
Mon Oct 15 05:54:45 2001

Date: Mon, 15 Oct 2001 11:55:27 +0200 (CEST)
From: Iljitsch van Beijnum <iljitsch@muada.com>
To: <nanog@merit.edu>
Message-ID: <20011015114910.U41033-100000@sequoia.muada.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu


Hi,

I'm looking for information about the way networks use communities in BGP.

It seems that many of the larger networks only use communities to supply
their customers with a mechanism to adjust the local preference to
indicate which connection is preferred when a customer connects over more
than one link (something that can also be done with the MED).

How many networks are there that use communities to indicate where (which
interconnect point) a route was learned? And how many networks use this
information if their upstream provides it?

And how about things like congestion?

Is there any need for more "well known" communities?

TIA,

Iljitsch van Beijnum


home help back first fref pref prev next nref lref last post