I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-idr-ext-opt-param-11 Reviewer: Christer Holmberg Review Date: 2021-04-15 IETF LC End Date: 2021-04-09 IESG Telechat date: 2021-04-22 Summary: The document is easy to read, and I have no technical issues. However, I do have a minor question, and a couple of editorial suggestions, that I'd like the authors to address. Major issues: N/A Minor issues: Q1: As far as I understand, the document only defines a new BGP OPEN Optional Parameter Type, but does not modify/add procedures in RFC 4271. So, is the document really an update to RFC 4271? And, when reading RFC 5429, I cannot find any text saying that new parameter types would require an update to RFC 4271. I also looked at a few other RFCs that add new values to the BGP IANA registry, and they were not updating any RFC. Nits/editorial comments: Q2: I suggest that Section 2 is renamed to "New Optional Parameter Type code", or something like that. OR, if the document really is updating RFC 4271, perhaps "Update to RFC 4271". Q3: I suggest that Section 3 is renamed to "Backward Compatibility", or something like that.