Hi George,

On 2010-09-30, at 06:45, George Barwood wrote:

> Not directly related to this draft ( it's probably out of scope ), but is 
> there any guidance on the timing of rollover of the Trust Anchor for the Root 
> Zone?

We have issued no guidance for this to date beyond

(a) in an emergency, a root zone KSK roll-over may happen uncomfortably 
quickly, depending on the type of emergency;

(b) we don't anticipate a scheduled key roll-over to earlier than 3 years (our 
messaging as mentioned "3 to 5 years");

(c) the roll-over will follow RFC5011.

Part of the reason (b) is vague is due to (c) -- we don't know how pervasive 
RFC5011 support is, and we expect RFC5011 support to be important for a large 
proportion of DNSSEC users. We know that the practical lifetime of software in 
the field an be long, and so presumably even if RFC5011 was universally 
shipping in validators today there would still be a necessary delay before we 
could expect it to be usefully available.

I would certainly expect any scheduled roll-over to be announced (and the trust 
anchor published) well in advance of the retirement of the old KSK.

We would be happy to hear thoughts from the community on what process and 
timing makes sense. If the dnsop chairs are happy for that conversation to 
happen here, we are listening.


Joe
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