[179148] in North American Network Operators' Group
Re: BGP offloading (fixing legacy router BGP scalability issues)
daemon@ATHENA.MIT.EDU (Mark Tinka)
Thu Apr 2 02:59:18 2015
X-Original-To: nanog@nanog.org
To: frederik@kriewitz.eu, nanog@nanog.org
From: Mark Tinka <mark.tinka@seacom.mu>
Date: Thu, 2 Apr 2015 08:59:10 +0200
in-reply-to: <CAKCUjRWVbLdBiqE__6F_EZ9-CSGhB8667kDDwY9gQN-oXcFKQA@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org
On 1/Apr/15 19:01, Frederik Kriewitz wrote:
>
> We're wondering if anyone has experience with such a setup?
Cisco have a feature called BGP-SD (BGP Selective Download).
With BGP-SD, you can hold millions of entries in RAM, but decide what
gets downloaded into the FIB. By doing this, you can still export a full
BGP table to customers directly connected to your 6500, and only have a
0/0 + ::/0 (and some more customer routes) in the FIB to do forwarding
to a bigger box.
BGP-SD started shipping in IOS XE, but I now understand that the feature
is on anything running IOS 15.
This would be my recommendation.
Mark.
