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 review focuses on transport protocol issues. The document was not reviewed for other considerations.

This document focuses on issues with changes in the association of Ethernet link (MAC) addresses and IP addresses as are exacerbated by machine (OS) virtualization (VMs). These associations primarily affect link address resolution (IPv4 ARP, IPv6 ICMPv6 Neighbor Solicitation/Neighbor Advertisement). Transport protocols are not directly affected by this issue. 

This document additionally considers issues with MAC address resolution impacted by IP address relocation and duplicate IP address use. Although these issues affect transport protocols, they are not uniquely impacted by the MAC-IP changes that are the focus of this document and are already addressed in other documents.