[77046] in North American Network Operators' Group
Re: IBGP Question --- Router Reflector or iBGP Mesh
daemon@ATHENA.MIT.EDU (Erik Haagsman)
Wed Jan 12 08:12:36 2005
From: Erik Haagsman <erik@we-dare.net>
Reply-To: erik@we-dare.net
To: Iljitsch van Beijnum <iljitsch@muada.com>
Cc: Alexei Roudnev <alex@relcom.net>, Daniel Roesen <dr@cluenet.de>,
NANOG list <nanog@merit.edu>
In-Reply-To: <F355F7CC-648B-11D9-8E23-000A95CD987A@muada.com>
Date: Wed, 12 Jan 2005 14:12:06 +0100
Errors-To: owner-nanog-outgoing@merit.edu
On Wed, 2005-01-12 at 12:20, Iljitsch van Beijnum wrote:
> (Obviously the IGP metric will be different at the client, but the
> client doesn't see the other routes, so it can't make a different
> decision. The real fun starts when the next (intra-AS) hop isn't a
> reflector client and the packet now takes a different path than the
> reflector client thought it would take.)
Yep, policing IGP and i/eBGP route distribution correctly so traffic
flows logically through the best path over the network as seen from both
the RR clients as intra-AS hops further down the path can be a bit
challenging, though you'd want every non-RR router to be a RR client and
every RR to behave like an RR client to RR's in other clusters, so you'd
have a reasonably uniform view of the network.
Cheers,
--
---
Erik Haagsman
Network Architect
We Dare BV
tel: +31(0)10 7507008
fax:+31(0)10 7507005
http://www.we-dare.nl
