[address-policy-wg] Removal of multihomed requirement for IPv6

On May 7, 2011, at 05:31, Mikael Abrahamsson wrote:

> On Fri, 6 May 2011, Gert Doering wrote:
> 
>> We still don't know, but given that IPv4 PI is much less restrictive, IPv4 PI is only contributing 21% of the BGP routes in the RIPE region, and the restrictive IPv6 PI policy is holding up deployment plans, people are asking to get this changed.
> 
> <meetings.ripe.net/ripe-53/presentations/address_space.pdf> seems to indicate that it's 59% ? Is there newer data available that shows what's happened since 2011 that could be had?

Dear Mikael,

The 59% is the number of IPv4 PI assignments that the RIPE NCC made at the time.

Looking at the IPv4 numbers today, we find:

- Using 1996 as a start date for counting, the RIPE NCC has allocated 15k prefixes to LIRs and assigned 16k prefixes as PI
- In 2011 so far, 57% of all prefixes given out were PI

In the BGP routing table the de-aggregation levels are much higher for PA allocations than for PI assignments though, 1:3.8 for PA allocations and 1:1.1 for PI assignments. This is the 21% number that Gert quotes.

Best regards,

Alex Le Heux
RIPE NCC