I am an assigned INT directorate reviewer for . These comments were written primarily for the benefit of the Internet Area Directors. Document editors and shepherd(s) should treat these comments just like they would treat comments from any other IETF contributors and resolve them along with any other Last Call comments that have been received. For more details on the INT Directorate, see https://datatracker.ietf.org/group/intdir/about/ . Based on my review, if I was on the IESG I would ballot this document as DISCUSS. I have the following DISCUSS/ABSTAIN level issues: - I do not understand the second half of the last paragraph of Section 1. It says: "BFD for Geneve MUST be used within a TMCE unless BFD is congestion controlled." But then seems to specify that it be congestion controlled inside a TMCE. Would it be simpler to say that BFD for Geneve must always be congestion controlled, if that is what is intended? - The wording in Section 4.1 first paragraph seems confusing and incomplete. (I believe this has been covered in other reviews.) - In the first paragraph of Section 6: How can it be that both "Geneve provides security" and "Geneve does not have any inherent security mechanisms" ? The following are other issues I found with this document that SHOULD be corrected before publication: - In section 4, the Inner Ethernet Header MAC addresses are in the wrong order. The Destination MAC comes first, followed by the Source MAC in an Ethernet header, the opposite of IP. The following are minor issues (typos, misspelling, minor text improvements) with the document: - Given the prominence of "tunnels" in the one sentence abstract, I think it would be good to use that word in the first paragraph of the Introduction. Possibly: "... an overlay network of tunnels by decoupling ..." - Section 1, last line of first paragraph on page 3: payload -> payloads - Section 4.1, first paragraph: "Protocol Type" -> "Ethertype" - Section 5, last line: that -> when - Section 6, "not low" -> "high" Thanks, Donald =============================== Donald E. Eastlake 3rd +1-508-333-2270 (cell) 2386 Panoramic Circle, Apopka, FL 32703 USA d3e3e3@gmail.com