RE: Posted a new copy of CPE Rtr draft

["Wes Beebee (wbeebee)" <wbeebee@cisco.com>]

> By the way, there are many words of caution that apply to auto-sub-
delegation of prefixes. In general, one
> wants them to aggregate in a nice way without all the issues of
renumbering. That means in part that there must
> be some way to recognize when it is inappropriate to use the
algorithm, such as saying that it is appropriate
> to networks using PA prefixes and in which internal aggregation is not
in use. If my upstream gives me a /60,
> there isn't a lot to discuss. If the upstream gives a /56 or a /48 and
the site in question has multiple
> campuses, auto-sub-delegation is probably pretty difficult to get
right. 

Perhaps what we need here is a default algorithm for auto-sub-delegation
that produces reasonable results in common cases with a manual override
so that if you don't like the results, you can always do it yourself.

- Wes