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PI space for very big sites [Re: stable addressing]
On Wed, 21 Apr 2004, Brian E Carpenter wrote:
> If it really is only 500 or 1000 enterprises world-wide, they will in the
> end get PI space and it will be routed in the DFZ, by simple economics.
> The challenge is not so much there. It's
> a) to solve the problem for the few million companies that aren't as big
> as Boeing but are too big to be connected in a simple way to a single ISP.
> That's why multi6 is here.
Which is why I've argued that it might make sense to try to find a
definition which could be used to give PI space to these very big
enterprises, while disallowing to the rest.
The only difficulty is drawing the line, but if someone could do
that, we might be better off.
Still, in many cases PI-space might not be the optimal solution if the
prefix would not be accepted as de-aggregated, if the enterprises
wouldn't want to advertise the whol /32 in all the peering/upstream
points (and handle the internal connectivity using more expensive
links -- this was the case taken up by C. Huegen from Cisco).
So, I'm not sure how much PI-space would *really* help because often
that would require advertising more specifics for TE purposes as well,
and that's not something we'd want to go for...
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings