[110168] in North American Network Operators' Group

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Re: IPv6: IS-IS or OSPFv3

daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sat Dec 27 15:38:40 2008

Date: Sat, 27 Dec 2008 21:37:51 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: nanog@nanog.org
In-Reply-To: <d0fea3580812262056k4c447061sd562c7f5b49fe670@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org

On Fri, 26 Dec 2008, devang patel wrote:

> Thanks for pointing out other good part of having CLNS as a transport 
> for ISIS as a security point!

It's also a potential hassle, where you can have IS-IS up and running, but 
have IP completely hosed. With OSPF this is harder as it actually runs 
over IP; no IP, no IGP adjacancy.

There is good reason why neither OSPF nor IS-IS rules the IGP world, they 
both have their advantages and disadvantages. Differences are usually in 
what the organisation is used to, not because one is fundamentally better 
than the other.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se


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