Re: draft-ietf-v6ops-addr-select-ps-02

[Florian Weimer <fw@deneb.enyo.de>]

I've also noticed that the draft fails to mention that Rule 9, when
applied by most of the client population on the Internet, results in
worse performance than no destination address sorting at all.

Rule 9 might offer a significant advantage in private deployments which
use non-IANA address allocation.  In other cases, routing is typically
not hierarchical at all, so that the length of the matching address
prefix is meaningless.