North American Network Operators Group
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Re: IPV6 renumbering painless?

  • From: Hank Nussbacher
  • Date: Sat Nov 13 12:21:16 2004 
At 09:39 AM 12-11-04 -0800, Owen DeLong wrote:


> Fortunately there are 'only' 65k ASN's, thus that would mean only 65k
> routes in the routing table, which should be quite practical. Seeing
> only ~650 routes now I don't see that happening that soon, especially
> with the slowness of deployment of IPv6 in the US, though it is catching
> on ;). Left to wonder though what happens when we run out of ASN's,
> 32bit ones?
>
32bit ASNs are already in the works.  I would expect not more than 2-3
years before you see widespread 32bit ASN code in routers.

Hmmmm:
Routing Table Report   04:00 +10GMT Sat 13 Nov, 2004

Analysis Summary
----------------

BGP routing table entries examined:                              150665
    Prefixes after maximum aggregation:                           88779
    Unique aggregates announced to Internet:                      71952
Total ASes present in the Internet Routing Table:                 18421 <----

30% usage and we need 32 bit ASNs?

-Hank