Re: [yang-doctors] Yangdoctors early review of draft-ietf-opsawg-teas-attachment-circuit-03

[[e-mail]]

Hi Ebben,

Please see inline. 

Cheers,
Med

> -----Message d'origine-----
> De : Ebben Aries <[e-mail]>
> Envoyé : lundi 15 janvier 2024 16:49
> À : BOUCADAIR Mohamed INNOV/NET <[e-mail]>
> Cc : [e-mail]; draft-ietf-opsawg-teas-attachment-
> [e-mail]; [e-mail]
> Objet : Re: Yangdoctors early review of draft-ietf-opsawg-teas-
> attachment-circuit-03
> 
> Thx Med - one comment inline...
> 
> On 2024-01-15 06:59:58, [e-mail] wrote:
> > [External Email. Be cautious of content]
> >
> >
...
> >
> > > - For `status/admin-status/last-change`, this leaf is `r/w`
> and
> > > while I
> > >   realize this is reuse from `ietf-vpn-common`, it seems that
> this
> > > is
> > >   incorrect and should be reflected as pure `r/o` state.
> >
> > [Med] Actually, no. Unlike the operational status, the client
> can control that for administrative status as well. Think about
> scheduled operations for example.
> 
> I'm conflicted why this would reside in modeling for the use-case
> you describe as this would entail a pattern that would need to be
> considered across _all_ modeling.

[Med] This is fair.

  I'm not sure I've seen this
> pattern arise before.
> 
> RFC7758 is one such example of how scheduled operations would be
> handled at the protocol messaging layer and not scattered among
> the data-content.

[Med] Please note that we are focusing mainly on service and network models, for which NETCONF may be the transport protocol, but I hear your point. 

Given that for the AC models, we do define the following for a client to control when a service can be activate/deactivated:

  grouping op-instructions
    +-- requested-start?   yang:date-and-time
    +-- requested-stop?    yang:date-and-time
    +--ro actual-start?      yang:date-and-time
    +--ro actual-stop?       yang:date-and-time

And that for advanced scheduling, the WG is working on a generic model (draft-ma-opsawg-schedule-yang) that can be used in a future ac augments if needed, I tweaked the draft so that the admin last-change is ro instead of rw. The diff to track the changes can be seen at:

* Diff ac-common: https://boucadair.github.io/attachment-circuit-model/#go.draft-ietf-opsawg-teas-common-ac.diff
* diff ac-svc: https://boucadair.github.io/attachment-circuit-model/#go.draft-ietf-opsawg-teas-attachment-circuit.diff

Better? 

Thank you for you patience.

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