Re: Global IPv6 policy question
Geoff Huston <gih <at> apnic.net>
2006-07-24 21:24:50 GMT
At 12:13 AM 25/07/2006, Tim Chown wrote:
>On Fri, Jul 21, 2006 at 06:20:08PM +0200, Iljitsch van Beijnum wrote:
> > On 21-jul-2006, at 17:42, Kevin Loch wrote:
> >
> > >/12 seems to be rather large given the unlikely possibility of
> > >a /13 assignment being made any time soon. The largest
> > >assignments being made so far have been /19, and only
> > >two ever.
> >
> > >A year's supply of the largest expected assignment size would
> > >be a good target. /16 should be more than enough.
> >
> > /12 makes for 512 blocks under 2000::/3 so it doesn't seem too
> > excessive, even if a bit longer would also be sufficient.
Some folk on this list may be regular attendees of the open address
policy meetings hosted by the Regional Internet Registries, and for
these folk this topic will all sound very familiar, no doubt. In
formulating this address policy proposal within these forums, this
topic was considered in some detail. Rather than rehash all the
material here (for which some of you may be grateful to be spared the
agony of such a rerun!) those who are interested may find it useful
to trawl back through the sessions of past RIR meetings where this
topic has been considered. In this context, I presented some work
looking at simulations of registry activity in a V6 registry and
looked at the impact of various policies in terms of the ability of
the registry to support coherent (non-fragmented) allocation windows
for ISPs and LIRs across the full sequence of initial and subsequent
(window expansion) allocations. An unpublished draft on this topic
can be found at
(Continue reading)