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 primarily for the benefit of the operational area directors. Document editors and WG chairs should treat these comments just like any other last call comments. Summary: Ready Reviewer's Notes: It took me a while to perform this review because I first had to read-up on IPP, which is a fair amount of text... But I found this draft and the related IPP documents to be well written. Cheers, -Benson