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

joel jaeggli <joelja@bogus.com> Tue, 26 March 2019 07:19 UTC

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To: Joe Clarke <jclarke@cisco.com>, "netmod@ietf.org" <netmod@ietf.org>
References: <94605356-c2a1-d00b-cffd-e7df94739a62@cisco.com>
From: joel jaeggli <joelja@bogus.com>
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Date: Tue, 26 Mar 2019 00:18:58 -0700
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Subject: Re: [netmod] Question on draft-wu-netmod-factory-default
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On 3/25/19 07:14, Joe Clarke wrote:
> 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?  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?
> 
> 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?

the germ of the idea is sensible enough. reset a DS to it's factory state.

When it meets reality of course is that there seem to be a bunch of
variants that seem like pretty compelling use cases.

reset the whole device being one of them.

the specification of a factory-default datastore and then

   o  startup configuration datastore

   o  candiate configuration datastore

   o  running configuration datastore

actually sound a bit implementation specific though I recognize that
most network operating systems due tend to follow models that at least
superficially resembled that.

I'm generally sympathetic to the application the draft proposes.

> 
> Joe
> 
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