[ipv6-wg at ripe.net] Re: [lir-wg] IXP networks routing

> > Multihoming is simple to just let hosts have multiple addresses,
> > which is already done with IPv6, and let the hosts choose
> > the destination address.
> 
> how to choose?

Just randomly, or, as is written in draft-ohta-e2e-multihoming-02.txt,

   Once a full routing table is available on all the end systems, it is
   easy for the end systems try all the destination addresses, from the
   most and to the least favorable ones, based on the routing metric.

   Note that end to end multihoming works with the separation between
   inter domain BGP and intra domain routing protocols, if BGP routers,
   based on domain policy, assign external routes preference values
   (metric) of intra domain routing protocols.

   One may still be allowed, though discouraged, to have local
   configuration with dumb end systems and an intelligent proxy. But,
   such configuration should be implemented with a protocol for purely
   local use without damaging the global protocol.

use routing table for reachability and metric.

BGPDNS could be the intelligent proxy.

						Masataka Ohta