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Re: [netmod] Question on draft-wu-netmod-factory-default

Qin Wu <bill.wu@huawei.com> Tue, 26 March 2019 05:26 UTC

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From: Qin Wu <bill.wu@huawei.com>
To: Joe Clarke <jclarke@cisco.com>, "netmod@ietf.org" <netmod@ietf.org>
Thread-Topic: [netmod] Question on draft-wu-netmod-factory-default
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Date: Tue, 26 Mar 2019 05:25:45 +0000
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Subject: Re: [netmod] Question on draft-wu-netmod-factory-default
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Joe,


-----邮件原件-----
发件人: netmod [mailto:netmod-bounces@ietf.org] 代表 Joe Clarke
发送时间: 2019年3月25日 22:14
收件人: netmod@ietf.org
主题: [netmod] Question on draft-wu-netmod-factory-default

I support the need for being able to reset a DS to its factory default.
However, I have a question on the current design of the model and the "factory-default" DS.

It seems to me that this is a single DS that might have been intended to reset running or startup.  However, what if I have different DSes that each have unique factory default data? 

[Qin]:We start with a simple case, you case could be addressed by invoking multiple rpc with each rpc to allow reset a set of datastores.
 If I choose to extend factory-default with a new identity of my other DS, how can I indicate that the target DS will be reset to _that_ DS?  Does that make sense?

[Qin]: In simple case, target DS will only be reset by a single factory datastore. If there is a new factory datastore could be derived from that DS, I think target DS should be changed to reset that new factory datastore.

Or if I do a <get-data> on a factory-default DS, how do I know what other DSes does this DS pertain?  Perhaps the server will use this to reset a given DS, but how would a user know that (other than perhaps naming of the factory-default DS)?

Maybe the module needs a mapping to let the client know what DS will be used to reset what other DS?
[Qin]: So your point is should we allow multiple source, multiple target in the same RPC, will think it over. Thanks.
Joe

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