Re: requirements draft revision

[Iljitsch van Beijnum <iljitsch@muada.com>]

On Tue, 26 Jun 2001, Joe Abley wrote:

> > 1. Multihoming should work even if the host on the other side of the
> > connection uses a current (June 2001) IPv6 implementation.

> Is this required in addition to 2.2.2 and 2.2.3?

Don't you mean 3.2.3?

The current way of multihoming requires only the multihomed network and its
transit providers to take any action.

If the new way of multihoming requires action (upgrading software) by the
other end, obviously this will be less effective because the number of sites
that upgrade their software will always be less than 100%.

So "old" multihoming would be superior to "new" multihoming so it is very
likely that networks will continue to use the old way until this becomes less
attractive for some reason, such as cost or default-free networks filtering
their routes.

Basically, I'm saying the new way of multihoming should be at least as 
attractive to most users as the current way.

> > 2. If the solution requires cooperation of the transit providers, it should
> > only require the cooperation between the customer and each of the transit
> > networks individually and not directly between the transit networks.

> How about this:

>   A multihoming strategy may require coopreration between an enterprise
>   and its transit providers, but must not require cooperation directly
>   between the transit providers.

Excellent.