Re: provisioning software, was DNS RRTYPEs, the difficulty with

Mark Andrews wrote:

> > What should a _new_ recursive non-authoritative server send as response
> > back to the stub resolver when it encounters a NOTIMP response from the
> > authoritative server for an AAAA query?
> Well the server should try the next server for the zone.  If all of them
> return NOTIMP, SERVFAIL/NOTIMP.
+1, this seems logical.

What is perhaps ultimately important to a developer is its application 
translation of DNS query results, including the application tracking 
for the redundancy of failures.  *Rhetorically,* does a NOIMP enable 
an automated trigger to disable a specific DOMAIN query?  Should a 
protocol translate SERVFAIL as an application temporary or permanent 
failure?  Can a temp status change to permanent due to redundancy?, etc.
--
HLS
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