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Re: [yang-doctors] [netmod] Operational State usage of YANG choices and constraints

Kent Watsen <kent+ietf@watsen.net> Fri, 22 December 2023 19:23 UTC

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From: Kent Watsen <kent+ietf@watsen.net>
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Date: Fri, 22 Dec 2023 19:22:55 +0000
Cc: "netmod@ietf.org" <netmod@ietf.org>, YANG Doctors <yang-doctors@ietf.org>
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To: Acee Lindem <acee.ietf@gmail.com>
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Subject: Re: [yang-doctors] [netmod] Operational State usage of YANG choices and constraints
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With limited experience wrt the impact on servers, as a client, it’s always best for the opstate data to be modeled as accurately as possible, for better processing and user experience.

K.


> On Dec 22, 2023, at 1:37 PM, Acee Lindem <acee.ietf@gmail.com> wrote:
> 
> We’ve had some discussions as to whether YANG models should put constraints or use choices for ‘config false’ data nodes. For example, if you have a two mutually exclusive containers, should the YANG model reflect this for ‘config false’ data? Or, if you have a leaf that would only make sense to return if the value of a preceding leaf has a certain value, should the ‘when’ clause be included in modeling? 
> 
> My thought was that it was better to reflect this in the model even for ‘config false’ data. 
> 
> Thanks,
> Acee
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