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Re: [netmod] Fwd: New Version Notification for draft-ietf-netmod-yang-instance-file-format-00.txt

Joe Clarke <jclarke@cisco.com> Tue, 06 November 2018 06:26 UTC

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To: Balázs Lengyel <balazs.lengyel@ericsson.com>, "netmod@ietf.org" <netmod@ietf.org>
References: <154147032474.4217.10743411700898817061.idtracker@ietfa.amsl.com> <07b9bcea-72e3-9986-7d42-303c4797f13a@ericsson.com> <2a796f78-41b7-376c-8f51-215d14cc4e2c@cisco.com> <87y3a6izap.fsf@nic.cz>
From: Joe Clarke <jclarke@cisco.com>
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Date: Tue, 06 Nov 2018 01:26:10 -0500
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Subject: Re: [netmod] Fwd: New Version Notification for draft-ietf-netmod-yang-instance-file-format-00.txt
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On 11/5/18 23:51, Ladislav Lhotka wrote:
> Joe Clarke <jclarke@cisco.com> writes:
>> ===
>>
>> Section 6
>>
>> With your datastore leaf, if I pull this off of a running YANG server,
>> serialize it and share it with my customer, why wouldn't I have the
>> actual datastore from which I retrieved it?  What I'm saying is that
>> this element may be missing, but if it is, I don't think you can assume
>> the source datastore for config=true nodes.
>>
> 
> The description of the "datastore" leaf doesn't make much sense to
> me. It says that for configuration data the default is "running" or
> "candidate" if "running" isn't writable. Why should it matter whether
> "running" is writable? It looks like it is assumed that the config data will
> eventually be fed into the indicated datastore, but I don't see any
> reason for such an assumption.
> 
> I can see that "datastore" can be occasionally useful as auxiliary
> metadata but, in my view, this document addresses also instance data
> that is not necessarily bound to any datastore.

I agree.  In some cases, I won't have a datastore, and that shouldn't
mean the consumer assumes running (or candidate).

Joe

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