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Re: [Netmod-ver-dt] [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)

"Sterne, Jason (Nokia - CA/Ottawa)" <jason.sterne@nokia.com> Wed, 05 June 2019 13:23 UTC

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From: "Sterne, Jason (Nokia - CA/Ottawa)" <jason.sterne@nokia.com>
To: "Rob Wilton (rwilton)" <rwilton@cisco.com>, "netmod-ver-dt@ietf.org" <netmod-ver-dt@ietf.org>
Thread-Topic: [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)
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Date: Wed, 05 Jun 2019 13:23:21 +0000
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References: <netmod-wg/yang-ver-dt/issues/2@github.com> <netmod-wg/yang-ver-dt/issues/2/498628782@github.com> <VI1PR07MB3981384DCEC43089F2E694D89B150@VI1PR07MB3981.eurprd07.prod.outlook.com> <BYAPR11MB2631509189C7F34A8E425143B5160@BYAPR11MB2631.namprd11.prod.outlook.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netmod-ver-dt/SNp-RslqYjpvtjQlyo9gt967KpM>
Subject: Re: [Netmod-ver-dt] [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)
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I would have thought that "status obsolete" would trump "mandatory".

It seems a bit odd to provide support for a node marked obsolete. Do we think there are servers out there today that support them?

From: Rob Wilton (rwilton) <rwilton@cisco.com>
Sent: Wednesday, June 5, 2019 4:46 AM
To: Sterne, Jason (Nokia - CA/Ottawa) <jason.sterne@nokia.com>; netmod-ver-dt@ietf.org
Subject: RE: [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)

Yes.  At the moment, a server is allowed to implement obsolete nodes that can break a client.

E.g. if an obsolete config node is mandatory, and it is implemented then the client must provide it, and if it is not implemented then the client must not provide it, and there is no way for a client to determine from the server whether it is implemented.

Thanks,
Rob


From: Netmod-ver-dt <netmod-ver-dt-bounces@ietf.org<mailto:netmod-ver-dt-bounces@ietf.org>> On Behalf Of Sterne, Jason (Nokia - CA/Ottawa)
Sent: 04 June 2019 18:54
To: netmod-ver-dt@ietf.org<mailto:netmod-ver-dt@ietf.org>
Subject: Re: [Netmod-ver-dt] [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)

I know we wanted a flag for deprecated nodes.  But was there ever confusion about obsolete nodes?

From: Robert Wilton <notifications@github.com<mailto:notifications@github.com>>
Sent: Tuesday, June 4, 2019 7:16 AM
To: netmod-wg/yang-ver-dt <yang-ver-dt@noreply.github.com<mailto:yang-ver-dt@noreply.github.com>>
Cc: Subscribed <subscribed@noreply.github.com<mailto:subscribed@noreply.github.com>>
Subject: Re: [netmod-wg/yang-ver-dt] Status obsolete nodes (#2)


The YANG library changes indicate whether status obsolete nodes are implemented by the server., which I think is as much as we can do in this draft.

Otherwise, this issue can be deferred to YANG.Next. netmod-wg/yang-next#63<https://github.com/netmod-wg/yang-next/issues/63>

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