Re: [address-policy-wg] Just say *NO* to PI space -- or how to make it lessdestructive

Gert Doering wrote:

The nice thing about Internet (as opposed to the telephone system) is the fact that we have DNS - and thus no need to take our "numbers" with us to be reachable.

This is certainly the theory. However, if you are a growing ISP, renumbering from PA space from another LIR to your own PI space or LIR/PA space can be - depending on how your customers are configured - pure pain. The portability associated with PI space is also important in one other view, in that it allows the holder to switch providers quickly and efficiently. There's no tie-in of any form, and this is something which is extremely important to business. Nick