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 reviewed this in conjunction with the set of related WG documents on NETCONF/RESTCONF subscriptions and event notifications. On this specific document, I didn't find any issues, though I do have comments that will be send on other documents in the set, some of which may influence this once, since they are closely related.