IETF Last Call Review of draft-ietf-ntp-roughtime-15
review-ietf-ntp-roughtime-15-opsdir-lc-buraglio-2026-01-05-00

Hi,

I have been selected as the Operational Directorate (opsdir) reviewer for this
Internet-Draft.

The Operational Directorate reviews all operational and management-related
Internet-Drafts to ensure alignment with operational best practices and that
adequate operational considerations are covered.

A complete set of _"Guidelines for Considering Operations and Management in
IETF Specifications"_ can be found at
https://datatracker.ietf.org/doc/draft-opsarea-rfc5706bis/.

While these comments are primarily for the Operations and Management Area
Directors (Ops ADs), the authors should consider them alongside other feedback
received.

- Document: draft-ietf-ntp-roughtime-15

- Reviewer: Nick Buraglio

- Review Date: 5-Jan-2026

- Intended Status: Experimental

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## Summary

Choose one:

- Has Issues: I have some minor concerns about this document that I think
should be resolved before publication.

## General Operational Comments Alignment with RFC 5706bis

I found this document easy to read and straightforward. Operationally, I
believe there should be some additions regarding operation.

## Major Issues

> No major issues found.

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## Minor Issues

There should be some text regarding Path MTU discovery, otherwise it will be
left to interpretation. There are also some fuzzy details about server failure
modes with regard to malphesense reporting, but that should probably be better
defined. Perhaps some further clarification outside of section 8.4 which
touches on some of the of failure modes and expected behaviors.

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