Frank Ellermann wrote:
Maybe the IETF could agree that it won't use the former "class E" for
any past, present, or future experiments. Updating RFC 1112 (STD 5)
or maybe RFC 1166, and then RFC 5735 for 6.25% of all windmills minus
one.
Given that NAT can expand the space 100 or 1000 times, while
maintaining the end to end transparency if you so wish, it's
not 6.25% but 625% or 6250%.
That is, unreservation is worth doing and as the first step,
it is a good idea to use some of the space for shared
transition where all the equipments having the unreserved
addresses should be able to treat the unreservation.
However, as the unreserved space is still precious, only
small part of the space should be allocated for shared
transition.
Masataka Ohta
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