Re: [netmod] Fwd: New Version Notification for draft-lengyel-netmod-yang-instance-data-01.txt

Ladislav Lhotka <lhotka@nic.cz> Tue, 26 June 2018 15:50 UTC

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From: Ladislav Lhotka <lhotka@nic.cz>
To: Balazs Lengyel <balazs.lengyel@ericsson.com>, netmod@ietf.org, Robert Wilton <rwilton@cisco.com>
Date: Tue, 26 Jun 2018 17:51:15 +0200
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Subject: Re: [netmod] Fwd: New Version Notification for draft-lengyel-netmod-yang-instance-data-01.txt
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On Tue, 2018-06-26 at 17:34 +0200, Balazs Lengyel wrote:
> Hello Lada,
> 
> Maybe you are right. It is probably only important in case of mixed 
> modules.  However as Rob proposed the usage of yang-data-ext I will put 
> it up as an open issue in Montreal. OK?

Sure, this is only a marginal issue.

Thanks, Lada

> 
> regards Balazs
> 
> 
> On 6/26/2018 5:30 PM, Ladislav Lhotka wrote:
> > On Tue, 2018-06-26 at 15:58 +0200, Balazs Lengyel wrote:
> > > Hello Lada,
> > > I don't insist on using yang-data-ext, but I like it.  Isn't this the
> > > exact
> > > use case for it: defining yang structured data that will never be loaded
> > > into
> > > a datastore. In this case the structure of the instance-data-set fits.
> > 
> > On the other hand, if it's never loaded into a datastore, there is no need
> > to
> > encapsulate the data and break tools that don't support yang-data-ext.
> > 
> > The encapsulation is really needed only if such data is mixed with "real"
> > YANG
> > data node definitions in the same module - for example, if error-message
> > schemas
> > are defined along with datastore contents, operations etc.
> > 
> > > If I would remove the yd:yang-data instance-data-format  statement it
> > > would
> > > not affect the actual file content. It just serves as  an indication that
> > > this
> > > is not  a datastore definition.
> > 
> > A comment in the module should perfecty suffice. Andy argued with machine
> > readability, but I don't see how it can be useful here.
> > 
> > And, after all, if a server implementor for whatever weird reason decides to
> > implement this module, what's wrong on doing so?
> > 
> > Lada
> > 
> > > regards Balazs
> > > 
> > > On 6/15/2018 9:41 AM, Ladislav Lhotka wrote:
> > > > Hi,
> > > > 
> > > > I support the adoption of this I-D as a workgroup item and my plan is to
> > > > implement it.
> > > > 
> > > > However, my suggestion is to avoid the use of yang-data-ext. It is
> > > > absolutely useless in this case and only complicates things that are
> > > > otherwise pretty trivial.
> > > > 
> > > > Lada
> > > > 
> > > > Balazs Lengyel <balazs.lengyel@ericsson.com>; writes:
> > > > 
> > > > > Hello,
> > > > > 
> > > > > I submitted a new version of the yang-instance-data draft updated with
> > > > > comments from the last
> > > > > IETF and others. I would like to get this adopted as a workgroup item.
> > > > > Please review it and if you
> > > > > like it please indicate that you support it as a workgroup item.
> > > > > 
> > > > > Changes:
> > > > >     o  Redefined using yang-data-ext
> > > > >     o  Moved meta data into ordinary leafs/leaf-lists
> > > > >     o  Corrections, clarifications
> > > > > 
> > > > > regards Balazs
> > > > > 
> > > > > -------- Forwarded Message --------
> > > > > 
> > > > >   Subject:   New Version Notification for draft-lengyel-netmod-yang-
> > > > > instance-data-01.txt
> > > > >   Date:   Wed, 13 Jun 2018 06:47:16 -0700
> > > > >   From:   internet-drafts@ietf.org
> > > > >   To:   Benoit Claise <bclaise@cisco.com>;, Balazs Lengyel
> > > > >     <balazs.lengyel@ericsson.com>;
> > > > > 
> > > > > A new version of I-D, draft-lengyel-netmod-yang-instance-data-01.txt
> > > > > has been successfully submitted by Balazs Lengyel and posted to the
> > > > > IETF repository.
> > > > > 
> > > > > Name:		draft-lengyel-netmod-yang-instance-data
> > > > > Revision:	01
> > > > > Title:		YANG Instance Data Files and their use for
> > > > > Documenting Server Capabilities
> > > > > Document date:	2018-06-13
> > > > > Group:		Individual Submission
> > > > > Pages:		10
> > > > > URL:            https://www.ietf.org/internet-drafts/draft-lengyel-net
> > > > > mod-
> > > > > yang-instance-data-01.txt
> > > > > Status:         https://datatracker.ietf.org/doc/draft-lengyel-netmod-
> > > > > yang
> > > > > -instance-data/
> > > > > Htmlized:       https://tools.ietf.org/html/draft-lengyel-netmod-yang-
> > > > > inst
> > > > > ance-data-01
> > > > > Htmlized:       https://datatracker.ietf.org/doc/html/draft-lengyel-ne
> > > > > tmod
> > > > > -yang-instance-data
> > > > > Diff:           https://www.ietf.org/rfcdiff?url2=draft-lengyel-netmod
> > > > > -yan
> > > > > g-instance-data-01
> > > > > 
> > > > > Abstract:
> > > > >     This document specifies a standard file format for YANG instance
> > > > >     data, that is data that could be stored in a datastore and whose
> > > > >     syntax and semantics is defined by YANG models.  Instance data
> > > > > files
> > > > >     can be used to provide information that is defined in design time.
> > > > >     There is a need to document Server capabilities (which are often
> > > > >     specified in design time), which should be done using instance
> > > > > data
> > > > >     files.
> > > > > 
> > > > >                                                                       
> > > > >      
> > > > >          
> > > > > 
> > > > > 
> > > > > 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
> 
> 
-- 
Ladislav Lhotka
Head, CZ.NIC Labs
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