Last Call Review of draft-ietf-opsawg-ipfix-on-path-telemetry-14
review-ietf-opsawg-ipfix-on-path-telemetry-14-opsdir-lc-dodge-2025-02-08-00

Reviewer: Menachem Dodge
Review result: Has Nits

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

The document defines an additional 4 IPFIX Information Elements in order to
export measured delay of packet flows at transit and decapsulating nodes.

The document is readable and understandable.

Nits
====

1. In the first paragraph of the introduction section the word "need" is used
twice but I believe that it should be "needs" with an 's'. 2. I believe that
the introduction would be clearer if the instructions to IANA about the new
elements were not included in the Introduction section but left for the IANA
section later in the document. I also think that the measurement interval
period should be mentioned in the introduction and added to the diagram in
Figure 1. 3. In section 3.3.5 it was not clear to me how the T0 and Tf are
determined by each node. Section 7.4 Measurement Interval does not explain what
triggers the start and end of the measurement interval. But maybe I have missed
this. 4. Section A.1 the title: "Aggregated On-Path Dealay Examples" should be
"Delay".

Thank you