Re: [yang-doctors] [netmod] Yangdoctors last call review of draft-ietf-netmod-entity-07
Radek Krejčí <rkrejci@cesnet.cz> Tue, 09 January 2018 15:02 UTC
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To: Martin Bjorklund <mbj@tail-f.com>
Cc: yang-doctors@ietf.org, draft-ietf-netmod-entity.all@ietf.org, netmod@ietf.org
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From: Radek Krejčí <rkrejci@cesnet.cz>
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Date: Tue, 09 Jan 2018 16:01:54 +0100
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Subject: Re: [yang-doctors] [netmod] Yangdoctors last call review of draft-ietf-netmod-entity-07
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Hi Martin, you are right, now I see it. So, to me, the document is Ready. Andy, text in RFC6087bis (Temporary non-NMDA Modules) should be changed since it seems to limit the temporary module to contain data nodes only. OLD It contains the top-level config=false data nodes that would have been defined in a legacy YANG module (before NMDA). NEW It contains the top-level config=false data nodes that would have been defined in a legacy YANG module (before NMDA) as well as the notifications, RPCs and actions that would refer such nodes. Regards, Radek Dne 8.1.2018 v 16:21 Martin Bjorklund napsal(a): > Hi, > > Radek Krejčí <rkrejci@cesnet.cz> wrote: >> Reviewer: Radek Krejčí >> Review result: Ready with Issues >> >> The document itself and normative parts seem fine to me, the only issue I see >> is with the ietf-hardware-state module in non-normative appendix A. It seems to >> me that this temporary non-NMDA module does not conform to its purpose as >> described in RFC6087bis. According to guidelines, such a module is intended to >> provide state (config false) data in case the server does not implement NMDA >> (to bridge the time period until NMDA is implemented). So such a server is IMHO >> intended to implement both modules, foo and foo-state. The foo-state contains >> "the top-level config-false data nodes that would have been defined in a legacy >> YANG module" - so it's only the ro mirror of data nodes. But >> ietf-hardware-state contains notifications, which are not the data nodes as >> defined in RFC7950. I understand why the notifications were placed also into >> the ietf-hardware-state - the module's description states that "If a server >> that implements this module but doesn't support NMDA also supports >> configuration of hardware components, it SHOULD also implement the module >> 'ietf-hardware' ...", so it allows its standalone usage in case the server does >> not support hw configuration. But in such a case, the server can implement >> ietf-hardware with deviations on the config=true nodes. > The problem with useing the notifcations defined in ietf-hardware in > this case is that all leafrefs would be wrong; they'd point into a > schema that is not implemented. > >> The same way it had to >> implement the legacy YANG module (before NMDA). > Before NMDA the leafrefs in the notifcations pointed to > /hardware-state, and all config was defined with an if-feature, so a > server did not have to use any deviations in this case. > > > > /martin > > > >> So I think that the notifications should be removed from ietf-hardware-state >> and the module's description should change this way: >> >> OLD >> >> If a server that implements this module but doesn't support NMDA >> also supports configuration of hardware components, it SHOULD >> also implement the module 'ietf-hardware' in the configuration >> datastores. The corresponding state data is found in the >> '/hw-state:hardware' subtree. >> >> NEW >> >> If a server that implements this module but doesn't support NMDA, >> it MUST also implement the module 'ietf-hardware' in the >> configuration datastores. The corresponding state data is found >> in the '/hw-state:hardware' subtree. >> >> >> _______________________________________________ >> netmod mailing list >> netmod@ietf.org >> https://www.ietf.org/mailman/listinfo/netmod
- [yang-doctors] Yangdoctors last call review of dr… Radek Krejčí
- Re: [yang-doctors] [netmod] Yangdoctors last call… Martin Bjorklund
- Re: [yang-doctors] [netmod] Yangdoctors last call… Radek Krejčí