Minutes IETF109: netmod
minutes-109-netmod-01

# Minutes for the NETMOD 109 WG Session

Please help capture the discussion in-line below.
No need to cover what is on the slides, just the discussion.
Please also (optionally) add you name here:
### Note takers:
* joel jaeggli

### Session material:
https://datatracker.ietf.org/meeting/109/session/netmod

### Session:
   Wednesday, November 18
   UTC+07: 14:30-15:30

0730-0830 utc

### WG Chairs:
   Lou Berger (lberger at labs dot net)
   Kent Watsen (kent plus ietf at watsen dot net)
   Joel Jaeggli (joelja at bogus dot com)

### Available During Session:
   ICS:            https://datatracker.ietf.org/meeting/109/sessions/netmod.ics
   MeetEcho:       https://meetings.conf.meetecho.com/ietf109/?group=netmod
   Jabber:         xmpp:netmod@jabber.ietf.org?join

### Available During / After Session:
   CodiMD:        https://codimd.ietf.org/notes-ietf-109-netmod
   Slides (TGZ): 
   https://datatracker.ietf.org/meeting/109/agenda/netmod-drafts.tgz Slides
   (PDF):  https://datatracker.ietf.org/meeting/109/agenda/netmod-drafts.pdf

### Available After Session:
   Recording:     https://ietf108.conf.meetecho.com/index.php/Recordings#NETMOD
   Jabber Logs:   https://www.ietf.org/jabber/logs/netmod

## Introduction

   Chairs (10 minutes)
   Session Intro & WG Status

   Introduction

   Lou Berger - started at 0730

   note well

   two differsets of slides for the yang versioning not reflected in the
   original agenda

   one rfc published since the last meeting. (808)

    document updates -

    two in rfc editor queue

        Yang Instance drraft is expired need to update it

    Balazs Lengyel - intend to work on the draft and sorry for the dealy

    Rob Wilton - liasions and communication

        work being done in 3gpp and O RAN - would be helpdfl for us make a
        liason providing advice for reuse

    Balazs - O RAN will use deviations from 3gpp models in specifications

    Lou - we need [consensus-derived] text (i.e., an RFC) to support whatever
    liason we write

    Balazs - The packaging document has such advice text.

## Chartered items:

### YANG Versioning Update (15 min)
   https://datatracker.ietf.org/doc/draft-ietf-netmod-yang-module-versioning/
   https://datatracker.ietf.org/doc/draft-ietf-netmod-yang-semver/
   https://datatracker.ietf.org/doc/draft-ietf-netmod-yang-packages/
   https://datatracker.ietf.org/doc/draft-ietf-netmod-yang-ver-selection/
   https://datatracker.ietf.org/doc/draft-ietf-netmod-yang-schema-comparison/
   Jan Lindblad and Bo Wu

   First presentation in series

   Versioning Solution Overeview

   Jan Lindblad presenting

   Tom Hill - why are you adding white space now?
       should just be a minor release
       without a minor version bump, the model should be immuatable

    Jan - Makes good sense from that point of view

    Tom - takes months to upgrade thousands of routers, so knowing about
    incompatibilities between models is important

Jan - Agree but determining what is and is not backwards campatible is
subjective

Kent - Yang doctors or someone not IANA should specify whether a module is
backwards compatible

Rob - Some models are derived from other registries. e.g. adding a new address
family to BGP. IANA does need some consideration

BO Wu - Presenting yang packages.

Lou - Did you talk about alternatives e.g. update 8407

Bo- right now it's in the packages draft

Rob - currently the document is focused on modules
    have we discussed holding virtual interims on the packages topic?

Lou - are you suggesting that we hold one

Rob - yes

## Non-Chartered items:

### Telemetry Data Self Explanation Tags (10 min)
   https://tools.ietf.org/html/draft-tao-netmod-yang-node-tags-06
   Qin Wu

Qin Wu - presenting data object tags

###   A YANG Data model for ECA Policy Management (20 min)
   https://tools.ietf.org/html/draft-wwx-netmod-event-yang-10
   Qin Wu

08:17 started

Qin

Intention is to raise adoption call

Need to discuss with Andy whether his comments on the second draft are
satisfied.

The four issues listed here  are already solved in this version

Kent Watsen - The chairs can initiate the adoption call and we can  see how it
goes. This would typically be the last go around at adoption for this draft.

Will follow up on the actions dicussed in this meeting.

concluded 08:33