On Wed, 3 Oct 2001, Iljitsch van Beijnum wrote:
Even better would be if the RIRs would divvy up the world in 10 - 20 regions, and allocate a /8 - /10 to each. That way, the routers don't have to know all individual routes to some remote region, but they can simply forward the traffic to a part of the network that does know the region-specific routes.
I'm afraid that doesn't work. It's great when there is exactly one provider and nobody multihomes. As soon as people start multihoming then they have to start announcing smaller prefixes everywhere. Then people will no longer have circuits to the previous monopoly provider so even if you routed to the /8 it won't get through. Sift things around for a few years and you have people in that region connecting to every possible backbone provider plus most of the 2nd tiers and misc other countries. Take a look at 203.0.0.0/10 (from memory) which is Telstra's allocation for Australia. Almost every single ip in that range is in Australia but there are hundreds of different paths as ISPs in that range have switched providers and circuits over the years. Didn't we have this argument with 8+8 ? -- Simon Lyall. | Newsmaster | Work: simon.lyall@ihug.co.nz Senior Network/System Admin | Postmaster | Home: simon@darkmere.gen.nz ihug, Auckland, NZ | Asst Doorman | Web: http://www.darkmere.gen.nz