>Done.
>
>This will be the third or fourth try for the document.  Perhaps there is
>now enough community interest to make it happen?

The more I look at this, the more of a mess I find.  It's not like it
would have been all up to you.  RFC 6335 came out five years after the
first version of your draft and would have been a fine opportunity to
de-mess.

Assuming the places in the draft where you refer to the left-most name
you mean the right-most name for what gets registered, it needs to
make clear what names enable what sub-names.

For example, if a name is _tcp or _udp, all of the names in the RFC
6335 service name registry are eligible.  This includes _soap-beep and
_xmlrpc-beep which are in that registry, and _certificates and _crls
which should be but aren't.  But RFC 2782 is pretty casual about what
protocols other than _tcp and _udp correspond to SRV names.  IANA has
a protocol registry at
http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
but a lot of the entries are not obvious candidates for SRV.  On the
other hand, RFC 5509 makes _sip a SRV protocol name even though it's
also a service.

DKIM currently allows _adsp as a subtag, probably not worth making a
registry, since there don't seem to be any other likely DKIM subtags.
Similarly there's _report._dmarc which seems to be a one-off.

R's,
John


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