[129374] in North American Network Operators' Group
Re: eBGP Multihop
daemon@ATHENA.MIT.EDU (Tony Li)
Fri Sep 3 15:37:18 2010
From: Tony Li <tony.li@tony.li>
In-Reply-To: <4C7F6E9A.6070203@apolix.co.za>
Date: Fri, 3 Sep 2010 12:36:36 -0700
To: Graham Beneke <graham@apolix.co.za>
Cc: NANOG <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sep 2, 2010, at 2:30 AM, Graham Beneke wrote:
> I have been asked to investigate moving an entire network to multi-hop =
on all the eBGP sessions. Basically all upstreams, downstreams and peers =
will eBGP with a route reflector located in the core. This RR will be =
some kind of quagga or similar box. The dev guys want to be able to poke =
at the BGP feeds directly and do *magic* that standard router aren't =
capable of.
>=20
> My gut feel is that this is a bad idea. Besides anything else it makes =
sane link state detection very challenging - especially where we have =
multiple sessions with a peer.
>=20
> Is their any BCP or operational experience that agrees or disagrees =
with my gut. ;-)
Multihop eBGP is a debugging tool that a developer left in the =
production code.
Tony
