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

Martin Bjorklund <mbj@tail-f.com> Thu, 27 June 2019 14:59 UTC

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Date: Thu, 27 Jun 2019 16:59:08 +0200 (CEST)
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To: j.schoenwaelder@jacobs-university.de
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From: Martin Bjorklund <mbj@tail-f.com>
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Subject: Re: [netmod] =?utf-8?b?562U5aSNOiAgRlc6IGEgcXVlc3Rpb24gYWJvdXQgaWV0?= =?utf-8?q?f-hardware_yang_module?=
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Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> wrote:
> On Thu, Jun 27, 2019 at 02:13:03AM +0000, Fengchong (frank) wrote:
> > > 
> > > I think the ambiguity is 'list changed' - does this mean that list 
> > > entries are added/removed or does it include also the case where a 
> > > property of a list entry has changed.
> > 
> > Ok.  Yes it is supposed to mean entry added/removed/modified.
> > 
> > But I can see another unclear thing - suppose I augment in an addtional leaf from my own model into this list.  Should last-change be updated if this new leaf is changed?
> > 
> 
> A reasonable interpretation in my view is that hardware/last-change is
> updated whenever
> 
> (1) a hardware component has been added
> (2) a hardware component has been removed
> (3) a hardware component has been replaced by a different hardware component
> 
> Here is an attempt for a new description:
> 
>          "The last time a new hardware component has been to the
                                                           ^^^^^
added


>           '/hardware/component' list, or a hardware component has
>  	  been removed from the '/hardware/component' list, or a
>           hardware component in the '/hardware/component' list has
>           been replaced by a different hardware component."
> 
> The point is to define this based on the events that cause the set of
> components to change instead of discussing leaf value changes.

Sounds reasonable.  But what exactly does "replaced by a different
component" mean?  Presumably it has the same name, but something else
is different.


/martin