[address-policy-wg] PI for IPv6 == PI for IPv4?

Turchani,

On Wed, Aug 17, 2011 at 7:41 PM, Turchanyi Geza
<turchanyi.geza at gmail.com> wrote:
> Hi Alex,
>
> May I interpret your slide29 in this way:
>
> 3,5% off the address space had been allocated as PI in the RIPE NCC service
> region and this PI address space is responsible for 21% of the BGP prefixes
> (originated in this region).
>
> So 3,5% AND 21%....
>
> In IPv6 PI this ratio probably will be even worse...

But is that ratio actually such a useful metric for IPv6?

I think you overlooked page 30, which IMO is much more useful:
15417 PA allocations => 59126 prefixes in the DFZ, a ratio of 3.8.
16340 PI assignments => 17468 prefizes in the DFZ, a ratio of 1.1.

Add to this that many operators have multiple assignments in IPv4,
which I must say has to be much less likely to happen in IPv6 than it
is in IPv4.

I believe there's already been research done to try and determine how
they would perform if they had a single assignment large enough for
their entire network, e.g. how much is TE, poor design or just simply
due to having had to return to RIR iteratively over the years to get
more space.  If not, someone should look into that. :)

Best Regards,
Martin