1. Give us a maximum number of multihomers.
4 Million
So how do you know it's 4 million and not 4.1?
Could be 4.1 or even 4.2. I'm assuming those working on 4byte ASs know, if it's more we'll have to migrate again which would be silly so soon So about 4M it must be.
We know that 125k works today
That's quite a bit less than current SUP720-3BXL
(I'm being a bit conservative because in IPv6 the addresses are longer) so the storage requirements should sort themselves out according to Moore in 7 x 1.5 years, so that would work in 2013. Processing scales non-linearly, though.
If we need it then it will exist, if not then we won't be able to do that and will do something else instead just as V4 users are doing when they discover V6 doesn't do what they want (let's not rehash whether what they want is reasonable or sensible) brandon