[195810] in North American Network Operators' Group
Re: IPv6 migration steps for mid-scale isp
daemon@ATHENA.MIT.EDU (sthaug@nethelp.no)
Sat Sep 16 04:56:34 2017
X-Original-To: nanog@nanog.org
Date: Sat, 16 Sep 2017 10:56:28 +0200 (CEST)
To: fredrik.sallinen@gmail.com
From: sthaug@nethelp.no
In-Reply-To: <CAAGLZPFhPG_nxXiuT2+mLFkkFX4J2XVkBVFKriXOsr_V55FR6Q@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> Thank you all for your Ideas. AFAIK one of the main decisions for IPv6
> transition and deployment is the choice of IPv6 IGP. I read somewhere
> that its a good practice to use different IGP protocol for IPv6 and
> IPv4. For example if IGP for IPv4 is IS-IS then use OSPFv3 for IPv6.
> any comments on this?
I've never heard this promoted as good practice - why on earth would
you want to make life more difficult for yourself by running two IGPs
if you can run one?
Yes, if you use OSPF for IPv4 you *have* to use something else for
IPv6. But if you already run IS-IS there is no reason to change, just
remember to enable multi-topology.
Steinar Haug, Nethelp consulting, sthaug@nethelp.no
