[netmod] Re: Genart ietf last call review of draft-ietf-netmod-rfc8407bis-24

[[e-mail]]

Hi Christer,

Thanks for the review. Will be ACKed in the next iteration.

Please see inline.

Cheers
Med

> -----Message d'origine-----
> De : Christer Holmberg via Datatracker <[e-mail]>
> Envoyé : jeudi 24 avril 2025 17:37
> À : [e-mail]
> Cc : [e-mail]; [e-mail];
> [e-mail]
> Objet : Genart ietf last call review of draft-ietf-netmod-
> rfc8407bis-24
> 
> 
> Document: draft-ietf-netmod-rfc8407bis
> Title: Guidelines for Authors and Reviewers of Documents Containing
> YANG Data Models Reviewer: Christer Holmberg Review result: Ready
> with Nits
> 
> I am the assigned Gen-ART reviewer for this draft. The General Area
> Review Team (Gen-ART) reviews all IETF documents being processed by
> the IESG for the IETF Chair.  Please treat these comments just like
> any other last call comments.
> 
> 
> Document: draft-ietf-netmod-rfc8407bis-24
> Reviewer: Christer Holmberg
> Review Date: 2025-04-24
> IETF LC End Date: 2025-05-05
> IESG Telechat date: Not scheduled for a telechat
> 
> Summary: The document is well written, and easy to read. However, I
> do have a question regarding the normative terminology that I would
> like the authors to address.
> 
> Major issues: N/A
> 
> Minor issues: N/A
> 
> Nits/editorial comments:
> 
> The document contains lots (especially for a BCP) of
> MUST/SHOULD/MAY/MOST NOT etc.
> 
> First, it is unclear whether the MUST/SHOULD/... is defined by this
> document, or whether it comes from the YANG specification.

[Med] Overall, YANG 1.0 modules have to conform to RFC 6020, YANG 1.1 modules have to conform to RFC 7950. This document adds usage guidelines in addition to the YANG RFCs.

> 
> Second, it is unclear what the criteria for MUST vs SHOULD is. Does
> it e.g., mean that a YANG validator will return an error is a MUST
> is not followed?
> 

[Med] MUST vs. SHOULD is decided by WG consensus. That same approach was followed in previous iterations of this work: RFC6087/RFC8407. Some very few normative levels are changed based on the experience: upgrade a SHOULD to MUST as in Section 3.2, for example.
  
We don't specify whether a validator should emit warnings or errors. However, we encourage the use of tools that check compliance with the guidance, e.g., 

   If the 'pyang' compiler is used to validate a normative module, then
   the "--ietf" command-line option MUST be used to identify any IETF
   guideline issues.
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