I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the operational aspects of the IETF drafts. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. Summary: Focusing primarily on the diffs from RFC 8478 and secondarily on the full document. Nits: Only one question: Should the Acknowledgements be augmented instead of replaced? Like "Acks for RFC 8478 are ... Further for this revision are ..." Thanks, Carlos.