Re: [netmod] FW: a question about ietf-hardware yang module

[Andy Bierman <[e-mail]>]

On Mon, Jun 24, 2019 at 6:59 PM Fengchong (frank) <
[e-mail]> wrote:

> Andy,
>
>     Can you clarify this question?
>
>
>

Since state-last-changed seems to cover state data changing, last-change
seems to apply to
the operational value of the config=true nodes in the /hardware/component
subtree

Andy




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> *发件人:* Fengchong (frank)
> *发送时间:* 2019年6月19日 10:21
> *收件人:* '[e-mail]' <[e-mail]>; '[e-mail]' <
> [e-mail]>
> *抄送:* yanjin (A) <[e-mail]>
> *主题:* a question about ietf-hardware yang module
>
>
>
> Hi andy and all,
>
>    I’m implementing ietf-hardware.yang, and I have a question about
> /hardware/last-change.
>
>
>
>    module: ietf-hardware
>
>      +--rw hardware
>
>         +--ro last-change?   yang:date-and-time
>
>         +--rw component* [name]
>
>            +--rw name              string
>
>            +--rw class             identityref
>
>            +--ro physical-index?   int32 {entity-mib}?
>
>            +--ro description?      string
>
>            +--rw parent?           -> ../../component/name
>
>            +--rw parent-rel-pos?   int32
>
>            +--ro contains-child*   -> ../../component/name
>
>            +--ro hardware-rev?     string
>
>            +--ro firmware-rev?     string
>
>            +--ro software-rev?     string
>
>            +--ro serial-num?       string
>
>            +--ro mfg-name?         string
>
>            +--ro model-name?       string
>
>            +--rw alias?            string
>
>            +--rw asset-id?         string
>
>            +--ro is-fru?           boolean
>
>            +--ro mfg-date?         yang:date-and-time
>
>            +--rw uri*              inet:uri
>
>            +--ro uuid?             yang:uuid
>
>            +--rw state {hardware-state}?
>
>            |  +--ro state-last-changed?   yang:date-and-time
>
>            |  +--rw admin-state?          admin-state
>
>            |  +--ro oper-state?           oper-state
>
>            |  +--ro usage-state?          usage-state
>
>            |  +--ro alarm-state?          alarm-state
>
>            |  +--ro standby-state?        standby-state
>
>            +--ro sensor-data {hardware-sensor}?
>
>               +--ro value?               sensor-value
>
>               +--ro value-type?          sensor-value-type
>
>               +--ro value-scale?         sensor-value-scale
>
>               +--ro value-precision?     sensor-value-precision
>
>               +--ro oper-status?         sensor-status
>
>               +--ro units-display?       string
>
>               +--ro value-timestamp?     yang:date-and-time
>
>               +--ro value-update-rate?   uint32
>
>
>
> Last-change’s description: "The time the '/hardware/component' list changed in the
>
>            operational state.";
>
> It seems this description means any change (configuration change or state
> change) of list /hardware/component/ will cause the update of
> /hardware/last-change.
>
>
>
> But in description of  notification:hardware-state-change
>
>     notification hardware-state-change {
>
>       description
>
>         "A hardware-state-change notification is generated when the
>
>          value of /hardware/last-change changes in the operational
>
>          state.";
>
>       reference
>
>         "RFC 6933 <https://tools.ietf.org/html/rfc6933>: Entity MIB (Version 4) - entConfigChange";
>
>     }
>
>
>
> This notification means if any change occurs in /hardware/last-change, a notification will be reported.
>
> This notification also refers to Entity MIB’s entConfigChange.
>
>
>
> My question is whether only configuration change of hardware component will cause the update of /hardware/last-change?
>
>
>