What's really needed is a routing slot market (was: Using IPv6 withprefixes shorter than a /64 on a LAN)

Mon Feb 7 21:25:56 UTC 2011

If you look at Gert Doering's slides that I presented at NANOG (in the IPv6
Deployment Experiences track)  I believe it is 1.4 prefixes per ASN in IPv6
and something like 10.5 prefixes per ASN in IPv4.   There are also
descriptions of the reasons for some of these multiple advertisements in
IPv6 as well as how many ASNs have just one and how many have 2 etc.   The
slides are here

http://www.nanog.org/meetings/nanog51/presentations/Monday/NANOG51.Talk13.Aronson-doring-v6-table.pdf

Enjoy!
-----Cathy

On Mon, Feb 7, 2011 at 2:10 PM, Owen DeLong <owen at delong.com> wrote:

>
> On Feb 7, 2011, at 12:19 PM, Matthew Petach wrote:
>
> > On Mon, Feb 7, 2011 at 12:04 PM, Owen DeLong <owen at delong.com> wrote:
> >>
> > ...
> >> On the other hand, when we can deprecate global routing of IPv4, we
> >> will see an earth shattering improvement as the current 10:1 prefix
> >> to provider ratio (300,000 prefixes for ~30,000 active ASNs) drops
> >> to something more like 2:1 in IPv6 due to providers not having to
> >> constantly run back to the RIR for additional slow-start allocations.
> >>
> >> Owen
> >
> > I suspect as we start seeing the CIDR report for IPv6, we'll see that
> > ASNs are announcing considerably more prefixes than that, in order
> > to localize traffic better.  I don't think it'll be 300,000 prefixes, but
> > I'd be willing to bet it'll be more than 100,000--not exactly "earth
> > shattering improvement".
> >
> > Matt
> > (hopeless deaggregator)
>
> Currently: 3,134 IPv6 ASNs active.
> Currently: 4,265 IPv6 prefixes.
>
> Looks like less than 2:1 to me.
>
> That's as close as I think I can get to an IPv6 CIDR report for the moment.
>
> Owen
>
>
>