Hello

I have been selected to do a routing directorate “early” review of this draft.
https://datatracker.ietf.org/doc/draft-ietf-ccamp-otn-tunnel-model/

The routing directorate will, on request from the working group chair, perform an “early” review of a draft before it is submitted for publication to the IESG. The early review can be performed at any time during the draft’s lifetime as a working group document. The purpose of the early review depends on the stage that the document has reached.

As this document is in working group last call, my focus for the review was to determine whether the document is ready to be published. Please consider my comments along with the other working group last call comments.

For more information about the Routing Directorate, please see https://wiki.ietf.org/en/group/rtg/RtgDir

Document: draft-ietf-ccamp-otn-tunnel-model
Reviewer: Dhruv Dhody
Review Date: 2026-07-12
Intended Status: Proposed Standards

## Summary:
This document is basically ready for publication, but has few nits that should be considered prior to being submitted to the IESG.

## Comments:

The document is generally well organized and readable. It clearly builds on the existing TE Tunnel YANG model and limits itself to OTN-specific augmentations, the document’s structure and organization make it relatively easy to follow.

RFC 9907 recommends usage examples for YANG modules, did the WG consider adding it?

## Nits:

- Dont use "OTN network", N is for Network. 
- Dont use "OTN transport networks" either :) 

Thanks! 
Dhruv