Med - Thanx for the constructive response. NOTE: I am not a draft author and am not speaking on behalf of the draft authors.
Please see inline. From: mohamed.boucad...@orange.com <mohamed.boucad...@orange.com> Sent: Wednesday, July 9, 2025 1:15 AM To: Les Ginsberg (ginsberg) <ginsb...@cisco.com>; Peter Psenak (ppsenak) <ppse...@cisco.com>; The IESG <i...@ietf.org> Cc: draft-ietf-lsr-igp-flex-algo-reverse-affin...@ietf.org; lsr-cha...@ietf.org; lsr@ietf.org; acee.i...@gmail.com Subject: RE: Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-flex-algo-reverse-affinity-07: (with DISCUSS and COMMENT) Hi Les, Thank you for this input. The guidance in 7370 is not sufficient here, IMO. The new registry is special in the sense that it is not about assigning a codepoint, but about maintaining an algorithm. As with any algorithm, and as we gain deployment experience and new needs are defined, steps may need some tweaking. We need to set the expectation on the maintenance of such an algorithm when offloaded to a registry, especially with a DE policy. As already indicated in my ballot, I'd expect at least we have guidance whether we allow reorder steps, merge steps, insert a step between existing ones, update an existing one, etc. These are of course examples, but the point is to exemplify my purpose. [LES:] I agree with the points you have made. Additional guidelines would be helpful. In the meantime, I also don't want us to set rules that may not be flexile enough to accommodate specific needs in the future. This is why I favor for now to change the policy to Standard Action. [LES:] I do not see that Standard Action policy has any advantage - or in any way addresses your concerns. And, as I have pointed out, it has limits that seem unnecessary/undesirable in this case. For example, it is at least conceivable that an experimental use of flex-algo may be defined in the future and it would be useful to be able to incorporate any new rules in a way that avoids interoperability issues. My interpretation of Standards Action policy is that it provides no support for that. In summary, I support your desire to see more complete guidelines for the new registry - but I don't support the use of Standards Action policy for the registry. Les Cheers, Med De : Les Ginsberg (ginsberg) <ginsberg=40cisco....@dmarc.ietf.org<mailto:ginsberg=40cisco....@dmarc.ietf.org>> Envoyé : mardi 8 juillet 2025 22:31 À : BOUCADAIR Mohamed INNOV/NET <mohamed.boucad...@orange.com<mailto:mohamed.boucad...@orange.com>>; Peter Psenak <ppsenak=40cisco....@dmarc.ietf.org<mailto:ppsenak=40cisco....@dmarc.ietf.org>>; The IESG <i...@ietf.org<mailto:i...@ietf.org>> Cc : draft-ietf-lsr-igp-flex-algo-reverse-affin...@ietf.org<mailto:draft-ietf-lsr-igp-flex-algo-reverse-affin...@ietf.org>; lsr-cha...@ietf.org<mailto:lsr-cha...@ietf.org>; lsr@ietf.org<mailto:lsr@ietf.org>; acee.i...@gmail.com<mailto:acee.i...@gmail.com> Objet : RE: Mohamed Boucadair's Discuss on draft-ietf-lsr-igp-flex-algo-reverse-affinity-07: (with DISCUSS and COMMENT) In regards to the registration policy for the new registry introduced by this draft - about which at least three IESG reviewers have commented (Ketan, Mohammed, and Roman) - all suggesting "Standards Action" rather than "Expert Review" as the policy... As the author of RFC 7370 - on which all of the IS-IS Registries (and some of the IGP Parameter registries) policies are based - I would like to comment. RFC 7370 was written precisely to address the use of Expert Review for registries. This was done in part because we wanted a policy that supports all RFC Tracks - including experimental. We also provided detailed instructions to the Designated Experts - see https://www.rfc-editor.org/rfc/rfc7370.html#section-4 I do not see that Standards Action policy is more robust - and it has the decided disadvantage that it only allows for "Standards Track or Best Current Practice RFCs" (as per https://www.rfc-editor.org/rfc/rfc8126#section-4.9 ). I would ask the IESG reviewers to consider the above. If you still feel that RFC 7370 based Expert Review policy is lacking, please be more specific in your reasons as to why. Thanx. 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