(sorry if it gets a duplicate)
I'm inclined to believe that dual-stack provider networks are going to
be relatively rare, and may not exist at all. I think it'll either be
WIDE (AS2500) and two of the major ISPs which deploy IPv6 are running
dual-stack. i bet others too (Verio, Internet2, anyone?)
it is not economical to run two separate physical link across the
pacific ocean.
itojun
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