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-core-yang-sid-pen-03]

- Reviewer: [Nabeel Cocker]

- Review Date: [12/04/2025]

- Intended Status: [Information RFC] 

 
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## Summary 

- Ready: No issues found. This document is ready for publication. 

The draft is very well written and easy to follow. 


## General Operational Comments 

I did have a question on section 3 Discussion and in particular the third major bullet and the suggestions for PEN holders to provide an infrastructure to discover the YANG module behind a SID either by using a git forge or a YANG library or both.  The question I have is whether there is a preference between these two?  Just a though if there is a preferred approach based on some experience it would be good to include that.

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