16 vs 32 bit ASNs [Re: BBC does IPv6 ;) (Was: large multi-site enterprises and PI]

Mon Nov 29 11:27:50 UTC 2004

On Mon, 2004-11-29 at 12:11 +0100, Cliff Albert wrote:
> On Mon, Nov 29, 2004 at 08:45:17AM +0200, Pekka Savola wrote:
> 
> > >Well, how many AS numbers would you like to give out? 30000 in 20 years? 
> > >100k a year? A million in a month? 32 bits will then give you 2863 
> > >millennia, 429 centuries or 357 years, respectively.
> > 
> > ASN exhaustion is IMHO just a symptom of the real problem.  Enlarging 
> > the ASN space does not cure the disease, just makes it worse.
> 
> And this is exactly my point.

Also, with 32bit ASN's, also expect upto 2^32 routes in your routing
table when each and every ASN would at least send 1 route and of course
there will be ASN's sending multiple routes.

32bits ASN would thus just mean the end of BGP...

Greets,
 Jeroen

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