On 2/21/12 2:54 AM, "Lorenzo Colitti"
<lorenzo(_at_)google(_dot_)com<mailto:lorenzo(_at_)google(_dot_)com>> wrote:
I think the suggested change does not go far enough. The "high-service-level
domains" that prompted this draft to be written, and all the implementers I'm
currently aware of, are decommissioning the practice.
So the paragraph that states, "It is unclear how implementers will judge when
the network conditions will have changed sufficiently to justify turning off
DNS Resolver Whitelisting and/or what the process and timing will be for
discontinuing this practice" is still incorrect. Can you just remove the
paragraph and start the section with "Many implementers have announced that
they plan to permanently turn off whitelisting beginning on..." ?
I've changed it around to the following:
Domains that choose to implement DNS Resolver Whitelisting generally consider
it to be a temporary measure. Many implementers have announced that they plan
to permanently turn off DNS Resolver Whitelisting beginning on the date of the
World IPv6 Launch, on June 6, 2012 <xref target='World IPv6 Launch'/>. For any
implementers that do not turn off DNS Resolver Whitelisting at that time, it
may be unclear how each and every one will judge when the network conditions to
have changed sufficiently to justify turning off DNS Resolver Whitelisting.
That being said, it is clear that the extent of IPv6 deployment to end users in
networks, the state of IPv6-related impairment, and the maturity of IPv6
operations are all important factors. Any such implementers may wish to take
into consideration that, as a practical matter, it will be impossible to get to
a point where there are no longer any IPv6-related impairments; some reasonably
small number of hosts will inevitably be left behind as end users elect not to
upgrade them or as some hosts are incapable of being upgraded.
Thanks for your input,
Jason
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