On Nov 4, 2022, at 10:27, Ben Schwartz <bemasc=40google....@dmarc.ietf.org> wrote:
> I agree; this is about utility, not necessity. For example, AAAA records > are almost never "necessary" in glue, but they are useful, so they are glue. "First they came for the v6-only clients, and I did not speak out, because I was not v6-only." Part of the problem here is that it's not possible for the sender of a referral response to know what is necessary or useful for a recipient since you have no knowledge of the receipient's state, e.g. what records have been cached or what authoritative data the recipient might have available. If glue is defined as being either necessary or useful, the sender of a referral response can never know whether an ADDITIONAL section record in a referral is glue: only a recipient can know. This doesn't seem very helpful if part of the goal of defining the term is to provide guidance for the construction of a referral response. Perhaps the most that can be said about glue records is that they are intended by the sender to be helpful, in the sense that it is possible to imagine recipients that find them useful or necesssary. Joe _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
