[110249] in North American Network Operators' Group
Re: IPv6: IS-IS or OSPFv3
daemon@ATHENA.MIT.EDU (David Freedman)
Tue Dec 30 20:05:36 2008
Date: Wed, 31 Dec 2008 01:08:01 -0000
From: "David Freedman" <david.freedman@uk.clara.net>
To: <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
>For IS-IS, highly recommend MT to avoid any nasties while=20
>turning up v6 in a dual-stack environment.
Also when doing MT on cisco, configure "no-adjacency-check" under the v6 =
address-family during the migrate
else you will bounce your sessions.
Cisco of course warn you against doing this but without it the change is =
bumpy.
>From the cisco docs:
"Disabling the adjacency-check command can adversely affect your network =
configuration. Enter the no adjacency-check command only when you are =
running IPv4 IS-IS on all your routers and you want to add IPv6 IS-IS to =
your network but you need to maintain all your adjacencies during the =
transition. When the IPv6 IS-IS configuration is complete, remove the no =
adjacency-check command from the configuration."
source: =
http://www.cisco.com/en/US/docs/ios/ipv6/configuration/guide/ip6-is-is.ht=
ml
------------------------------------------------
David Freedman
Group Network Engineering=20
Claranet Limited
http://www.clara.net
