I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments.

The summary of the review is: Ready

Although I am not familiar with the domain of network measurement, the document is clear and easy to understand.

From what I can see, this is a valuable but not complex addition to two well-established network measurement protocols: OWAMP and TWAMP. The security analysis in the specifications for those protocols seems to apply here just as well. I do not see any substantial unaddressed security issues in this document or in the earlier ones.