fwiw I agree with Warren’s proposal and Paul’s observation that such a registry is a good idea and it need not reflect only left-most labels.
However, I worry that this approach does not generalise and scale well and the registry maintenance guidelines should reflect an appropriately rigorous and conservative attitude to further additions. But its a useful registry to have in any case imho Geoff > On 28 Sep 2018, at 1:42 am, Paul Hoffman <paul.hoff...@icann.org> wrote: > > On 27 Sep 2018, at 8:13, Warren Kumari wrote: > >> During the discussions on KSK Sentinel and MTA-STS ( >> https://datatracker.ietf.org/doc/draft-ietf-uta-mta-sts/20/) the IESG noted >> that we recently have twice "reserved" use of a left hand (non-underscore) >> label. >> >> It is strongly felt that a registry to record names like this would be >> useful. >> >> Some examples of these names include: >> root-key-sentinel-not-ta-<number>. >> mta-sts. >> xn--(anything). > > xn--(anything) labels can appear anywhere. > >> Ok, good point.... but, I still think that labels which get special >> handling should be recorded *somewhere*, simply to satisfy the principle of >> least astonishment... > > Fully agree. However, the registry should probably be for "special handling", > not just for left-most position. >> >> So, does would anyone be willing to volunteer to write a "Special Use >> Labels" document (similar to draft-ietf-dnsop-attrleaf) simply creating a >> registry for "these left hand labels are special / funny in some way" ? > > Sure. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
