Re: [i2rs] FW: New Version Notification for draft-hares-netmod-i2rs-yang-04.txt

Hi Sue,

I've only had a very quick scan of the doc, and I think that you may be 
planning to update this to reflect revised-datastores-1 anyway.

But I have one high level question/comment (that I think may equally 
apply to the I2RS impact on NETCONF and RESTCONF):

Is I2RS planning on making changes/additions to the core of YANG to 
support I2RS requirements?  I.e. new YANG statements that would expect 
to be supported by all YANG implementations.

Or, is I2RS planning on defining some I2RS specific extensions to YANG, 
which would also include defining some new I2RS specific datastore(s), 
but that would not change the core of the YANG language?  E.g. rather 
than adding a new "ephemeral" keyword to YANG, the I2RS extension would 
define the "ephemeral" extension statement, which would then be 
annotated in I2RS specific modules as "i2rs:ephemeral true".

I think that the latter approach would be much more preferable if that 
is feasible.

Similar comments to NETCONF and RESTCONF may equally apply (I've not 
read your drafts yet).  I.e. if possible, it is probably better to 
define optional I2RS specific extensions than attempt to bake I2RS 
support into the NETCONF or RESTCONF protocols themselves.

Thanks,
Rob

On 11/03/2017 19:37, Susan Hares wrote:
> Russ:
> <individual contributor hat on>
> I request a time slot to present a yang syntax that would support I2RS work.
>
> Sue Hares
> <individual contributor hat off>
>
>
> -----Original Message-----
> From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> Sent: Saturday, March 11, 2017 2:41 PM
> To: amit.dass@ericsson.com; Amit Daas; Susan Hares
> Subject: New Version Notification for draft-hares-netmod-i2rs-yang-04.txt
>
>
> A new version of I-D, draft-hares-netmod-i2rs-yang-04.txt
> has been successfully submitted by Susan Hares and posted to the IETF repository.
>
> Name:		draft-hares-netmod-i2rs-yang
> Revision:	04
> Title:		Yang for I2RS Protocol
> Document date:	2017-03-11
> Group:		Individual Submission
> Pages:		26
> URL:            https://www.ietf.org/internet-drafts/draft-hares-netmod-i2rs-yang-04.txt
> Status:         https://datatracker.ietf.org/doc/draft-hares-netmod-i2rs-yang/
> Htmlized:       https://tools.ietf.org/html/draft-hares-netmod-i2rs-yang-04
> Diff:           https://www.ietf.org/rfcdiff?url2=draft-hares-netmod-i2rs-yang-04
>
> Abstract:
>     This document requests yang language additions for the data models
>     that exist as part of the I2RS control plane datastore.  One of these
>     additions is the ability to mark a portion of the model as having
>     ephemeral state.
>
>                                                                                    
>
>
> 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
>
>
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