Re: [netmod] 答复: 答复: Please clarify implementation about ‘when’
Ladislav Lhotka <lhotka@nic.cz> Thu, 26 September 2019 10:27 UTC
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From: Ladislav Lhotka <lhotka@nic.cz>
To: "Schönwälder, Jürgen" <J.Schoenwaelder@jacobs-university.de>
Cc: "netmod@ietf.org" <netmod@ietf.org>
Date: Thu, 26 Sep 2019 12:27:17 +0200
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Archived-At: <https://mailarchive.ietf.org/arch/msg/netmod/yFFMiXICXla2FYq4Goh6W1zPu0A>
Subject: Re: [netmod] 答复: 答复: Please clarify implementation about ‘when’
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On Thu, 2019-09-26 at 09:39 +0000, Schönwälder, Jürgen wrote: > On Thu, Sep 26, 2019 at 09:45:26AM +0200, Martin Bjorklund wrote: > > > > > o There MUST be no nodes tagged with "when" present if the "when" > > > > > condition evaluates to "false" in the data tree. > > > > > > > > It also says in 8.2: > > > > > > > > o If a request modifies a configuration data node such that any > > > > node's "when" expression becomes false, then the node in the data > > > > tree with the "when" expression is deleted by the server. > > > > > > Right. But the request won't modify a configuration data node because it > > > is > > > rejected. So the premise of the above implication doesn't hold, and the > > > conclusion doesn't apply. > > > > With the same logic you can claim conformance if you reject a request > > to create nodes under a case if another case is active. I think it is > > quite clear that this auto-deletion is part of the spec, and something > > clients can rely on. If the intention had been that this was optional > > to implement, it would have been clearly stated, and there would have > > been mechanism present for clients to detect this. > > > > Yes, this auto-delete behaviour is part of the specification and it > was not an oversight that this slipped in. Of course I know it was the intention, even though I have been against it all the time. > > Sure, one can discuss whether this feature is useful or harmful > but the only way to officially remove this is to create a new > specification and to run it through the IETF process. I do insist that the wording in 7950 permits my interpretation, so I don't propose any change. What I propose instead is to remove such protocol-specific parts from the specification of the YANG language, and clarify it in the specification of individual protocols. Lada > > /js > > -- > Juergen Schoenwaelder Jacobs University Bremen gGmbH > Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany > Fax: +49 421 200 3103 <https://www.jacobs-university.de/> -- Ladislav Lhotka Head, CZ.NIC Labs PGP Key ID: 0xB8F92B08A9F76C67
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- [netmod] FW: Please clarify implementation about … Fengchong (frank)
- Re: [netmod] Please clarify implementation about … Rob Wilton (rwilton)
- Re: [netmod] Please clarify implementation about … Andy Bierman
- [netmod] 答复: Please clarify implementation about … Fengchong (frank)
- [netmod] 答复: Please clarify implementation about … Fengchong (frank)
- Re: [netmod] Please clarify implementation about … Andy Bierman
- Re: [netmod] Please clarify implementation about … Andy Bierman
- [netmod] 答复: Please clarify implementation about … Fengchong (frank)
- [netmod] 答复: Please clarify implementation about … Fengchong (frank)
- Re: [netmod] Please clarify implementation about … Andy Bierman
- [netmod] 答复: Please clarify implementation about … Fengchong (frank)
- [netmod] 答复: 答复: Please clarify implementation ab… Qin Wu
- Re: [netmod] 答复: 答复: Please clarify implementatio… Sterne, Jason (Nokia - CA/Ottawa)
- Re: [netmod] 答复: 答复: Please clarify implementatio… Andy Bierman
- Re: [netmod] 答复: 答复: Please clarify implementatio… Andy Bierman
- [netmod] 答复: 答复: 答复: Please clarify implementatio… Qin Wu
- Re: [netmod] 答复: 答复: Please clarify implementatio… Andy Bierman
- Re: [netmod] 答复: 答复: Please clarify implementatio… Ladislav Lhotka
- Re: [netmod] 答复: 答复: Please clarify implementatio… Martin Bjorklund
- Re: [netmod] 答复: 答复: Please clarify implementatio… Ladislav Lhotka
- Re: [netmod] 答复: 答复: Please clarify implementatio… Martin Bjorklund
- Re: [netmod] 答复: 答复: Please clarify implementatio… Schönwälder
- Re: [netmod] 答复: 答复: Please clarify implementatio… Ladislav Lhotka
- Re: [netmod] 答复: 答复: Please clarify implementatio… Rob Wilton (rwilton)
- Re: [netmod] 答复: 答复: Please clarify implementatio… Schönwälder
- Re: [netmod] 答复: 答复: Please clarify implementatio… Ladislav Lhotka
- Re: [netmod] 答复: 答复: Please clarify implementatio… Martin Bjorklund
- Re: [netmod] 答复: 答复: Please clarify implementatio… Ladislav Lhotka
- Re: [netmod] 答复: 答复: Please clarify implementatio… Andy Bierman
- [netmod] What's the problem with NMDA? was Re: 答复… tom petch
- Re: [netmod] What's the problem with NMDA? was Re… Andy Bierman
- Re: [netmod] What's the problem with NMDA? was Re… Schönwälder
- Re: [netmod] What's the problem with NMDA? was Re… Andy Bierman
- Re: [netmod] What's the problem with NMDA? was Re… tom petch
- Re: [netmod] What's the problem with NMDA? was Re… Rob Wilton (rwilton)
- Re: [netmod] What's the problem with NMDA? was Re… Andy Bierman