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 document appears ready for publication. I only have a small number of nits that can be considered to be adopted for readability and clearness improvements.

Section 1: 
ND can have issues in some scenarios due to the use of multicast,
   trusting all hosts, or installing NCE entries on demand.

Please expand NCE as this is the first usage of this acronym.

Section 2.3 Section title is too long. Why not use the short hand that has been adopted in Section 2.4? For example: "Router-NCE-on-Demand related issues"

Section 3: Please fix formating of Table 1, it is really hard to get an overview in the text version.

Section 3.10: "Source Address Validation Improvement [SAVI] binds an address to a
   port and rejects claims from other ports for that address."
Please clarify what the port is on. I get the impression there are an assumption of a L2 switch here.