> the average number of v4 prefixes per AS is ~10, and it's rising. In > v6, the goal is that every PI site can use a single prefix**, meaning > the v6 routing table will be at least one (and two or even three > eventually) orders of magnitude smaller than the v4 one. how much of the v4 prefix count is de-aggregation for te or by TWits? why won't they do this in v6? randy