[address-policy-wg] Real multihoming or anycast?

> > > My suggestion is meant to support the 80% of
> > > "critical" services that could benefit from the same
> > > technology as Google, but which are not large enough to
> > > go it alone.
> 
> As mentioned above, let them request some address space from one of the
> larger carriers.

I don't know of any large carrier that operates a 
globally diverse network offering globally diverse
hosting of the sort that these anycast meshes need.
And I don't think we should be trying to create such
things either. However, if we give a /32 to a company
who will offer anycast services similar to the anycast
services used by some root DNS servers, then we make it
possible for TLD operators to buy the anycasting rather
than forcing them to build their own.

However, if you want to force them to build their own
then you have to support giving every one of them their
own /32.

I think the world is better off if we encourage 3rd parties
to build anycast meshes and offer them as a service to
TLD operators and others.

> Oh oops, there is one problem there, they actually wanted Independent
> Address Space, that is if they suddenly hate their upstream, it goes
> belly up etc that they don't have to change anything. Ergo sum they want
> a slot in the routing table and nothing else.

The idea is that anycasting is a solution for services which
are "critical" and therefore they need independent address space.
However, this could be provided by an anycast mesh operator who
aggregates many networks and who offers an escrow agreement
in their customer contracts to ensure continuity. Also, if
RIPE enables several of these anycast meshes, I would expect
that most TLD operators would use two or three independent
anycast meshes. When you consider that they can easily use
up to 13 IP addresses, it is easy to configure 3 addresses
from 3 different anycast mesh operators, along with 10
diverse unicast addresses.

> See: http://www.itu.int/ITU-T/worksem/ngn/200505/index.html

I really don't see how the ITU is relevant here. This has
nothing to do with them. It is all about Internet infrastructure
and Internet addressing.

--Michael Dillon