RE: [sig-policy]the size of sparse allocation

[Takashi Arano <arano@inetcore.com>]

At 15:40 03/08/27, Paul Wilson wrote:

> > My personal question.
> >
> > What would be a typical reservation size for large LIRs, say,
> > with 1 million subscribers, if the sparse allocation is implemented?
> >
> > If the answer is around /20 or so, I guess /12 is OK for IANA-RIR
> > allocation size.
>
> Dear Arano san,
>
> Based on HD=0.80, a /23 provides up to 1,048,576 site addresses.  Therefore
> a large LIR with a million subscribers would probably have a /23, assuming
> each subscriber gets a /48.
>
> If an RIR has a /12, then after 2048 allocations under a sparse allocation
> system, the maximum allocation size (or "reservation" as you put it) would
> be /23.  After this time, an ISP requiring more than a /23 would need to
> receive a separate block.
>
> This situation would occur today if all RIR member LIRs transitioned to
> IPv6, since at least one RIR has more than 2048 member LIRs, and a number of
> those LIRs would qualify for more than a /23.
>
> Perhaps this type of analysis gives us a means to determine whether a /12
> allocation from IANA is large enough?
Yes. Now I believe /12 seems large enough, based on the above.

I also think it would be smarter not to spend too much time on the size
discussion but to implement the policy as soon as possible,
because v6 swamp is being created daily....

Regards,
Arano

> Paul
> APNIC.
>
>
> >
> > Regards,
> > Arano
> >
> >
> > At 12:56 03/08/27, Takashi Arano wrote:
> > >Hi,
> > >
> > >the outline of IPv6 sparse allocation policy proposal got
> > consensus in
> > >both SIG and AMM as I previously mailed.
> > >
> > >One issue still remains about the size of allocation (from IANA to
> > >RIRs), /8 or /12. Let's discuss this in this mailing list.
> > >
> > >Regards,
> > >Takashi Arano
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