Re: [netmod] [Netconf] Alternative YANG library structure for 7895bis

Andy Bierman <andy@yumaworks.com> Fri, 08 December 2017 18:01 UTC

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From: Andy Bierman <andy@yumaworks.com>
Date: Fri, 8 Dec 2017 10:01:20 -0800
Message-ID: <CABCOCHQZLirVDqGNysAkRFXruPKxyXrBQ+xyagU9y3QHRV6d0g@mail.gmail.com>
To: Kent Watsen <kwatsen@juniper.net>
Cc: Ladislav Lhotka <lhotka@nic.cz>, "netconf@ietf.org" <netconf@ietf.org>, "netmod@ietf.org" <netmod@ietf.org>
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Subject: Re: [netmod] [Netconf] Alternative YANG library structure for 7895bis
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Hi,

A library per datastore sounds too complicated.
I prefer the proposal that was made at the IETF meeting that had
a 'not-implemented-in' leaf-list and a single module list.

Why is it interesting to have a separate module list for regular modules
and imported modules?
I prefer to keep the conformance leaf and not change the module list.

NMDA needs to be possible to implement with a single schema tree such that
a module
is implemented in all datastores, or a subset of all datastores.  Otherwise
it probably won't
get supported in clients.


Andy



On Fri, Dec 8, 2017 at 9:21 AM, Kent Watsen <kwatsen@juniper.net> wrote:

> CC-ing NETCONF, where the draft is being worked on.
>
> Kent
>
>
> On Fri, 2017-12-08 at 16:34 +0100, Juergen Schoenwaelder wrote:
> > On Fri, Dec 08, 2017 at 04:19:28PM +0100, Vladimir Vassilev wrote:
> > >
> > > Yes. The default value for yang-library-datastore leaf is
> ds:operational
> > > (the only possible one for the ds:operational datastore). This is
> backward
> > > compatible. If one needs different model for 'running', etc. then a new
> > > datastore identity has to be defined  and set in place of the default
> value.
> > > Then this identity can be used to read the yang-library data with
> > > <get-data>.
> > >
> >
> > Sorry, but I have to ask this: How do I obtain the schema for the
> > datastore (lets call it <running-library>) that reports the schema for
> > <running>? Is there another <running-library-library> datastore? Will
> > the recursion end? Perhaps it does since <running-library-library>
> > might have itself listed as the schema defining datastore. I guess
> > Lada will like these kind of meta and meta-meta datastores.
>
> Not really. Metadata needn't be in datastores.
>
> Lada
>
> >
> > /js
> >
> --
> Ladislav Lhotka
> Head, CZ.NIC Labs
> PGP Key ID: 0xB8F92B08A9F76C67
>
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