[ppml] IPv4 "Up For Grabs" proposal

[michael.dillon at bt.com]

> I'll stipulate that the impending collapse of the IPv4 DFZ 
> has been greatly exaggerated if you'll stipulate that IPv6 
> BGP will converge faster when the same routers don't have to 
> converge IPv4 BGP in parallel. There will be real incentives 
> not just to move towards IPv6 but to move away from IPv4.

And when the IPv6 routing table only has one /32 entry per provider.

--Michael Dillon