Re: Resolving geo discussions

[Brian E Carpenter <brian@hursley.ibm.com>]

Tim Chown wrote:
> 
> On Mon, Apr 14, 2003 at 03:38:29PM +0200, Brian E Carpenter wrote:
> >
> > I think it needs to build on the observation that there is no congruence
> > between network topology and geography to show that we have no way to make
> > geo addresses aggregate in practice. It doesn't need to be that long.
> > But since it's an abstract "why this doesn't work" argument, I think
> > it needs to be separate from any specific technical proposal.
> 
> Well, geography meets topology at an IX, so the exchange-based addressing
> experiments being done by Euro6IX are interesting in this respect,
> possibly.   Perhaps Jordi can comment on that.
> 

There's no doubt that if you can persuade all the upstream ISPs to do
the right thing, and persuade all the local downstream ISPs to do the 
right thing, the IX-based addressing model can help a lot (and can simply 
use PA space as if it was PI). But I don't think the economic forces involved
will exercise the required persuasion.

   Brian