[6bone] separating IPv6 experimental from production traffic

[Rik van Riel]

On Wed, 21 Aug 2002, Ronald van der Pol wrote:
> On Wed, Aug 21, 2002 at 10:29:15 -0700, Bill Manning wrote:
>
> > 	Tell me how you propose to do this?
>
> I think we first have to decide what to do: cleanup or separation.

This shouldn't be too hard, actually.  The main (only) complaint
I've seen is bad routing over the experimental network, to be
more precise, bad routing of _production_ packets over the 6bone.

Here is my naive proposal:

1) everybody can still have ipv6-over-ipv4 tunnels like today

2) peers notify each other whether their network is production
   or experimental

3) experimental (3ffe::/16) pTLAs announce only 3ffe:: prefixes
   to their production (2001::/16) peers

4) experimental pTLAs announce all prefixes to their 3ffe::/16
   peers

5) production networks announce all prefixes to everybody

This means that packets from one production network to another
production network will only get routed over production networks
and NOT over potentially unstable experimental networks.

It also means that the production and experimental parts of the
ipv6 space still have full connectivity to each other, ie the
reachability of either 3ffe::/16 or 2001::/16 space hasn't
gotten any worse.

The only change is that traffic between production networks is
travelling through production networks only and doesn't depend
on possible failures in the experimental network.

This also gives an incentive for ISPs to migrate from experimental
to production prefixes, since that will potentially give them better
ipv6 connectivity.

Any flaw in my reasoning ?

Would this idea be non-intrusive enough that it can be implemented
by the roughly 300 pTLAs and sTLAs out there today ?

kind regards,

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

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