On Thu, Aug 11, 2011 at 01:52:10PM +1200, Brian E Carpenter wrote: > Well, we know that the human population will stabilise somewhere below > ten billion by around 2050. The current unicast space provides for about
How about the machine population? How about self-replicating systems? How about geography-based address allocation, to go away with global routing tables? How about InterPlaNet, such as LEO routers, solar power satellites, controlling industrial production on the Moon and elsewhere? I don't expect IPv6 will last much longer than IPv4. And that's probably a good thing. > 15 trillion /48s. Let's assume that the RIRs and ISPs retain their current > level of engineering common sense - i.e. the address space will begin to be > really full when there are about 25% of those /48s being routed... that makes > 3.75 trillion /48s routed for ten billion people, or 375 /48s per man, woman > and child. (Or about 25 million /64s if you prefer.) > > At that point, IANA would have to release unicast space other than 2000::/3 > and we could start again with a new allocation policy. > > I am *really* not worried about this. Other stuff, such as BGP4, will break > irrevocably long before this. -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com http://postbiota.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE