[171490] in North American Network Operators' Group
Best practices IPv4/IPv6 BGP (dual stack)
daemon@ATHENA.MIT.EDU (Deepak Jain)
Fri May 2 15:45:19 2014
X-Original-To: nanog@nanog.org
From: Deepak Jain <deepak@ai.net>
To: NANOG <nanog@nanog.org>
Date: Fri, 2 May 2014 19:44:33 +0000
Errors-To: nanog-bounces@nanog.org
Between peering routers on a dual-stacked network, is it considered best pr=
actices to have two BGP sessions (one for v4 and one for v6) between them? =
Or is it better to put v4 in the v6 session or v6 in the v4 session?
According to docs, obviously all of these are supported and if both sides a=
re dual stacked, even the next-hops don't need to be overwritten.
Is there any community-approach to best practices here? Any FIB weirdness (=
e.g. IPv4 routes suddenly start sucking up IPv6 TCAM space, etc) that resu=
lts with one solution over the other?
Thanks in advance,
DJ
