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.

This is a follow up on my review of -14. 

I like to thank the authors for addressing the issues I spotted and explain details I had missed. 

I leave the handling of the reference to proxy to the ADs to discuss what their view are. The text
has been clarified that this is intended for future extension based on a specification.