Re: Advantages and disadvantages of using CB64 type of identifiers

> Are you saying we should treat applications as black boxes and be 
> prepared to handle any combination of actions from all of them?

Yes.

If we can't do that we have to require application changes (or configuration
external to the applications) so that the stack can know what requirements
the applications have on the identifiers they use.

(Requring such application changes is quite different than for instance
suggesting that applications that do callbacks or referrals invoke some new
API or do something different to take *full advantage* of multihoming.)

   Erik