In message 
<cah1iciqxwowao8nm8k-x47qiwawery9+etuefygzfn3aj5w...@mail.gmail.com>, Brian 
Dickson writes:
> 
> IIRC, there is support for generic-named types similar to BIND's record
> type name/number thing.

It is RFC3597 format not "BIND's record name/number thing".
 
> The RRTYPE would be a given a name which is something like "rrtypeNNNN",
> and numeric value associated with the name, which is NNNN.

TYPENNNN is reserved for all NNNN [0..65535].  Why reinvent the wheel?

> The RDATA would be encoded as a specified-length base-64 encoded binary
> blob.

Why switch to base64 rather than continuing with hex?
 
> The RDATALEN specifies the length of the RDATA.
> 
> As to maintaining the specification, given that this is a -00 version, it
> might need to be clarified.
> 
> I think that this would best be handled in an IANA registry, on the basis
> of the existing registered DNS types, names, etc.
> 
> I think there is perhaps a need to specify how to craft the entries in that
> registry.
> 
> Long-term, it may be better to include the encoding as table entries for
> the DNS types, as first-class citizen(s) within those other registry
> entries.
> 
> All of this is flexible.
> 
> Brian
> 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: [email protected]

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