On Nov 26, 2014, at 11:18 AM, Davey Song <songlinj...@gmail.com> wrote:
> Hi folks, I just post a draft on Priming Exchange over TCP. Comments are 
> welcome!

The proposed solution is not needed as long as the resolver that using the 
priming exchange can fall back to TCP. A different approach to the document 
would be:

   Motivation: The root zone is longer than 512 octets,
   so responses to priming queries are truncated.

   Requirement: All resolvers that perform priming
   queries MUST be able to use TCP as specified in
   RFC 1035 when performing the priming query.

That should be an RFC of less than two pages, and would not involve making 
priming queries special enough to require a protocol change for them.

--Paul Hoffman
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