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List:       quagga-users
Subject:    [quagga-users 12295] Relevance of IS-IS (was: Re: Re: Torus network
From:       Nick Hilliard <nick () inex ! ie>
Date:       2011-05-18 9:21:53
Message-ID: 4DD38FB1.1020806 () inex ! ie
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On 18/05/2011 00:14, Lennart Sorensen wrote:
> When was the last time anyone saw ISIS
> in use?  Why is that code there?

wut?

You do realise that IS-IS is the IGP of choice on many  medium-sized IP 
service providers and after a certain size, is pretty much universally used 
in tier1 and tier2 providers?  And that IS-IS is used as the basis for the 
routing protocol in TRILL?  In fact, I understand that at least one of the 
TRILL reference implementations uses quagga code.

I use IS-IS on networks which I built and maintain.  And nothing would 
please me more than if there were wider ISORM support in linux and freebsd, 
and that hooks for this could be put into quagga so that we could move away 
from the current BPF hacks.

IS-IS rocks.  And not only does it rock, it's a lot easier to extend to 
include new protocols than ospf.  It's all TLVs in IS-IS rather than 
per-protocol stuff.  Much cleaner to implement - also cleaner from an 
operational point of view.

http://www.google.com/search?q=%22is-is%22%20+site:nanog.org

Nick

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