This document has been reviewed as part of the transport area review team's ongoing effort to review key IETF documents. These comments were written primarily for the transport area directors, but are copied to the document's authors and WG to allow them to address any issues raised and also to the IETF discussion list for information. When done at the time of IETF Last Call, the authors should consider this review as part of the last-call comments they receive. Please always CC tsv-art@ietf.org if you reply to or forward this review. I have not found issues related to transport. However, I have two questions: Section 5.2 What is the timer value for AR-REPLICATOR-activation-timer? Are there dependencies to other parameters? Section 6.2 What is the timer value for timer t? Are there dependencies to other parameters? Nits: Abstract Resolve BUM, resolve acronyms on first occurrence Section 1 BUM resolved after being used. Section 10 A implementation following -> An implementation following