20402 routing entries

[yakov () watson ibm com]

Ref:  Your note of Fri, 15 Apr 1994 10:52:00 -0400


Henry,

> This assumes alot, including customers that don't switch providers
> and inject more specific routes (this is happening already).

No, I assumed that most (but NOT all) of the customers who switch
providers would renumber. I can further weaken this assumption
by allowing aggregation above the immediate provider level
(you can do this with CIDR).

> You're also assuming that we have a mechanism for aggregating
> routes for folks who choose not to (or can't, for some reason).

That is not so far-fetched assumption. Proxy aggregation is
likely to happen, whether some folks like it or not.

> CIDR only buys us a *little* time..

Remember there is "CIDR movie", but there is also "CIDR book".
You need to consider both...

Yakov.
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