In your letter dated Wed, 27 Jul 2011 21:56:51 -0400 you wrote:
In the absence of a coherent instruction from IETF for a phase-out
plan, declaring this protocol historic under the current proposed
language, will do precisely that. Please please please, if IETF
wants 6to4 to die, then publish a phase-out plan so that the
current users of 6to4 can have fair warning before the relays go
dark and forthcoming hardware/software upgrades rip the feature
out from under them.
I would hope that big companies like Apple would actually do an impact
analysis before removing a feature.
Big content providers can measure how much 6to4 is enabled, so they can
probably say something about trends. But that doesn't say much about how many
users actually care about 6to4. Vendors seem to be best equiped to analyse
the users' need for 6to4.
I don't think relay operators have expressed a desire for a specific cut off
date. So I guess they just figure out for themselves when to switch off the
relays.
_______________________________________________
Ietf mailing list
Ietf(_at_)ietf(_dot_)org
https://www.ietf.org/mailman/listinfo/ietf