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Re: Ideas for IPv6 BGP and tunnelling

Pekka Savola <pekkas@netcore.fi> Thu, 23 April 2009 12:12 UTC

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Date: Thu, 23 Apr 2009 15:10:45 +0300
From: Pekka Savola <pekkas@netcore.fi>
To: Adrian Kennard <ietf-v6ops@aaisp.net.uk>
cc: Mohacsi Janos <mohacsi@niif.hu>, v6ops@ops.ietf.org
Subject: Re: Ideas for IPv6 BGP and tunnelling
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On Thu, 23 Apr 2009, Adrian Kennard wrote:
> Mohacsi Janos wrote:
>>  Hi Adrian,
>>      Are you referring 6PE (http://tools.ietf.org/html/rfc4798) or
>>  something new?
>
> Not MPLS, no. Its IPv6 over IPv4 (protocol 41) tunnels and how to link IPv6 
> islands in a more seamless way using BGP.
>
> If this is the right place to raise the issue I'll provide a few more details 
> of the issues and solution if you like.

Maybe you should take a look at the softwire WG.  They're dealing with 
similar problems.

But I fear there so far the idea hasn't gotten much traction. In fact, 
the RFC4798 predecessor documents [1] included ability to set up 
tunnels over GRE and similar non-MPLS encapsulations.  This was 
explicitly _removed_ because the solution was targeted at MPLS 
networks, not as a general purpose BGP-signalled tunneling mechanism.

[1] take a look at e.g:
http://tools.ietf.org/html/draft-ooms-v6ops-bgp-tunnel-00

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings

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