Hi, IANA uses the term "registry group" to refer to top-level registries and "registry" to describe a set of registrations (as opposed to a set of sets). There are logistical reasons for this, but the use of the term "registry" in particular matches the usage in ICANN's MoU with the IETF (and our MoU-mandated performance reports).
I should add that we still use the term "sub-registry," but only to refer to, e.g., a registry of sub-TLVs for a TLV. So "Domain Name System Security (DNSSEC) NextSECure3 (NSEC3) Parameters" (as it's listed at https://www.iana.org/protocols and https://www.iana.org/assignments/dnssec-nsec3-parameters) is a registry group that includes the DNSSEC NSEC3 Flags, DNSSEC NSEC3PARAM Flags, and DNSSEC NSEC3 Hash Algorithms registries, while "DNSSEC Delegation Signer (DS) Resource Record (RR) Type Digest Algorithms" is the name of a registry group that consists solely of a registry called "Digest Algorithms." We'll address this in more detail in 8126bis. RFC 8126, which mostly uses the word "grouping" -- "group" was recommended by the RFC Editor -- mentions this issue, but doesn't include instructions. Thanks, Amanda Baber IANA Operations Manager On 9/23/22, 9:44 AM, "last-call on behalf of Paul Hoffman" <last-call-boun...@ietf.org on behalf of paul.hoff...@icann.org> wrote: On Sep 23, 2022, at 9:34 AM, tom petch <daedu...@btconnect.com> wrote: > Going into the IANA registry by name, as I usually do, I think that from Section 6 > DNSSEC Algorithm numbers > DNSSEC NSEC3 parameters > are groups and not registries whereas > DNSSEC DS RRtype > I have yet to find (but have not yet used the URL) Thanks for the comment. I don't know if there is a strict rule about what is an IANA "registry" verus a "group". I do note that all three that are listed are top-level URLs, so I would guess that they would all be considered the same type of IANA thing. --Paul Hoffman _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
