[177128] in North American Network Operators' Group
MPLS VPN design - RR in forwarding path?
daemon@ATHENA.MIT.EDU (Marcin Kurek)
Wed Dec 31 07:08:01 2014
X-Original-To: nanog@nanog.org
Date: Wed, 31 Dec 2014 13:08:15 +0100
From: Marcin Kurek <notify@marcinkurek.com>
To: nanog@nanog.org
In-Reply-To: <54A3E6C7.7070406@gmail.com>
Errors-To: nanog-bounces@nanog.org
Hi everyone,
I'm reading Randy's Zhang BGP Design and Implementation and I found
following guidelines about designing RR-based MPLS VPN architecture:
- Partition RRs
- Move RRs out of the forwarding path
- Use a high-end processor with maximum memory
- Use peer groups
- Tune RR routers for improved performance.
Since the book is a bit outdated (2004) I'm curious if these rules still
apply to modern SP networks.
What would be the reasoning behind keeping RRs out of the forwarding
path? Is it only a matter of performance and stability?
Thanks,
Marcin
