From: (no name) (no email)
Date: Mon Mar 06 2006 - 04:57:39 EST
> I can tell you this: the only scalable solutions
> on the horizon are:
>
> - moving multihoming related state out of the DFZ (this is what shim6
> does)
This is what geo-topological addressing does.
> - remove the requirement that every DFZ router carries every prefix,
> which can't be done as long as PI blocks sit at the top of the
> addressing hierarchy
Geotop addressing does this also because only a few
aggregates are in the DFZ. The detail is elsewhere.
> The closest thing to a magic, pain-free solution would be to allocate
> PI blocks such that it's possible to aggregate them together and
> ignore the more specifics for far away regions of the world, so that
> in 2030 you don't have to carry 60000 Chinese PI blocks world wide
> that all sit behind the same Great Firewall anyway,
Exactly!
And this doesn't need to be done in a mandatory way. It
can be done so that large providers can continue to use
provider-aggregatable addresses. Geotop addressing is
one of those 80-20 solutions where the largest 20% of
providers mostly use classic IPv6 address but the other
80% of smaller multihomers use geotopologically aggregatable
addresses.
--Michael Dillon
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