[netmod] Version selection draft posted

"Rob Wilton (rwilton)" <rwilton@cisco.com> Sat, 29 February 2020 07:21 UTC

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From: "Rob Wilton (rwilton)" <rwilton@cisco.com>
To: "netmod@ietf.org" <netmod@ietf.org>, "netmod-chairs@ietf.org" <netmod-chairs@ietf.org>
Thread-Topic: Version selection draft posted
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Date: Sat, 29 Feb 2020 07:21:17 +0000
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Subject: [netmod] Version selection draft posted
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Netmod chairs,

The version selection draft draft-wilton-netmod-yang-ver-selection-02 is now posted.  With that, the YANG versioning design team would like to please request you make an WG adoption call for these documents.

The updated full list is:

1) draft-verdt-netmod-yang-solutions-03
 - Solution overview, updated since 106 to cover updates to version selection and schema comparison drafts.

2) draft-verdt-netmod-yang-module-versioning-01
 - Base module versioning solution, unchanged from the version presented at 106.

3) draft-verdt-netmod-yang-semver-01
 - YANG Semantic version numbers, unchanged from the version presented at 106.

4) draft-rwilton-netmod-yang-packages-03
 - YANG packages draft, updated since 106
 
5) draft-wilton-netmod-yang-ver-selection-02
 - Version selection, updated since 106, as per notes below

6) draft-verdt-netmod-yang-schema-comparison-00
 - Schema comparison tooling, unchanged from the version presented at 106.

The main changes to the version selection draft are:
 - We have tried to simplify the model, but at the same time give servers more flexibility about how they implement version selection and what it can be used for.  E.g. if the server wants to allow a client to choose between different schema versions, but require that all clients use the same schema version, that is now possible
 - The draft explicitly disallows schema-selection happening mid-session
 - The solution allows the server to require clients to configure schema-sets before they are used
 - The solution provides more information about which schema-sets are compatible with each other

Regards,
Rob


> -----Original Message-----
> From: netmod <netmod-bounces@ietf.org> On Behalf Of Rob Wilton (rwilton)
> Sent: 19 February 2020 17:03
> To: netmod@ietf.org
> Subject: Re: [netmod] FW: New Version Notification for draft-rwilton-
> netmod-yang-packages-03.txt
> 
> Just as a reminder of what the full set of versioning documents are that
> we will ask the chairs to consider for WG adoption (in case you wish to
> start reviewing some of the drafts early), are listed them below, and I
> have indicated which ones have been (or will be) updated since 106.
> 
> 1) draft-verdt-netmod-yang-solutions-03
>  - Solution overview, updated since 106 to cover updates to version
> selection and schema comparison drafts.
> 
> 2) draft-verdt-netmod-yang-module-versioning-01
>  - Base module versioning solution, unchanged from the version presented
> at 106.
> 
> 3) draft-verdt-netmod-yang-semver-01
>  - YANG Semantic version numbers, unchanged from the version presented at
> 106.
> 
> 4) draft-rwilton-netmod-yang-packages-03
>  - YANG packages draft, updated since 106, as per notes below.
> 
> 5) draft-verdt-netmod-yang-module-versioning-02 (TBD)
>  - Version selection, will post updated version soon, current aim is for
> the end of Feb.
> 
> 6) draft-verdt-netmod-yang-schema-comparison-00
>  - Schema comparison tooling, unchanged from the version presented at 106.
> 
> Thanks,
> Rob
> 
> 
> > -----Original Message-----
> > From: Lou Berger <lberger@labn.net>
> > Sent: 19 February 2020 16:37
> > To: Rob Wilton (rwilton) <rwilton@cisco.com>om>; netmod@ietf.org
> > Subject: Re: [netmod] FW: New Version Notification for draft-rwilton-
> > netmod-yang-packages-03.txt
> >
> > Thanks Rob/Team!
> >
> > All,
> >
> >      We're planning to run the adoption poll on the versioning
> > document set  once the next update of the selection draft is published
> > -- so please feel free to get started reading/commenting on this
> document now.
> >
> > Lou
> >
> > On 2/19/2020 11:31 AM, Rob Wilton (rwilton) wrote:
> > > FYI, I've posted an updated version of the YANG packages draft.
> > > This is
> > the version that we plan to request a WG adoption call on, once we
> > have an updated version of the version selection draft posted
> > (hopefully ready soon).
> > >
> > > To highlight the main changes:
> > >   - Added a section to describe how YANG packages relate to
> > > datastore
> > schema, along with guidance on how to structure package definitions.
> > >   - Unified the package definition on the server vs in YANG instance
> > data documents.  In particular, the on-server definition no longer
> > reuses the module-sets from YANG library.  This also simplifies the
> > explanation of how these definitions relate since the same common
> grouping is reused.
> > >   - Move packages into its own top level container, rather than
> > > being
> > under YANG library.
> > >   - Changed the binding between datastore schema in YANG library and
> > packages.  Before there was a 1:1 binding from datastore schema to
> > package definition.  It has been changed to a 1:N binding, i.e. a
> > datastore scheme is represented by a union of compatible packages.
> > This aligns with how the relationship is defined in the version
> selection draft.
> > >
> > > Thanks,
> > > Rob
> > >
> > >
> > > -----Original Message-----
> > > From: internet-drafts@ietf.org <internet-drafts@ietf.org>
> > > Sent: 19 February 2020 16:15
> > > To: Jason Sterne <jason.sterne@nokia.com>om>; Reshad Rahman (rrahman)
> > > <rrahman@cisco.com>om>; Rob Wilton (rwilton) <rwilton@cisco.com>om>; Joe
> > > Clarke (jclarke) <jclarke@cisco.com>om>; Wu Bo <lana.wubo@huawei.com>om>;
> > > Bo Wu <lana.wubo@huawei.com>
> > > Subject: New Version Notification for
> > > draft-rwilton-netmod-yang-packages-03.txt
> > >
> > >
> > > A new version of I-D, draft-rwilton-netmod-yang-packages-03.txt
> > > has been successfully submitted by Robert Wilton and posted to the
> > > IETF
> > repository.
> > >
> > > Name:		draft-rwilton-netmod-yang-packages
> > > Revision:	03
> > > Title:		YANG Packages
> > > Document date:	2020-02-19
> > > Group:		Individual Submission
> > > Pages:		56
> > > URL:            https://www.ietf.org/internet-drafts/draft-rwilton-
> > netmod-yang-packages-03.txt
> > > Status:         https://datatracker.ietf.org/doc/draft-rwilton-netmod-
> > yang-packages/
> > > Htmlized:       https://tools.ietf.org/html/draft-rwilton-netmod-yang-
> > packages-03
> > > Htmlized:       https://datatracker.ietf.org/doc/html/draft-rwilton-
> > netmod-yang-packages
> > > Diff:           https://www.ietf.org/rfcdiff?url2=draft-rwilton-
> netmod-
> > yang-packages-03
> > >
> > > Abstract:
> > >     This document defines YANG packages, a versioned organizational
> > >     structure holding a set of related YANG modules, that collectively
> > >     define a YANG schema.  It describes how packages: are represented
> on
> > >     a server, can be defined in offline YANG instance data
> > > documents,
> > and
> > >     can be used to define the schema associated with YANG instance
> data
> > >     documents.
> > >
> > >
> > >
> > >
> > > Please note that it may take a couple of minutes from the time of
> > submission until the htmlized version and diff are available at
> > tools.ietf.org.
> > >
> > > The IETF Secretariat
> > >
> > > _______________________________________________
> > > netmod mailing list
> > > netmod@ietf.org
> > > https://www.ietf.org/mailman/listinfo/netmod
> > >
> _______________________________________________
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