* WGs marked with an * asterisk has had at least one new draft made available during the last 5 days

Netmod Status Pages

Network Modeling (Active WG)
Ops Area: Ignas Bagdonas, Warren Kumari | 2008-Apr-29 —  
Chairs
 
 
 


IETF-104 netmod minutes

Session 2019-03-25 0900-1100: Grand Ballroom - Audio stream - netmod chatroom
Session 2019-03-25 1350-1550: Congress Hall 1 - Audio stream - netmod chatroom

Minutes

minutes-104-netmod-00 minute



          IETF 104 netmod meeting minutes
          
          Monday Session 1 - Second half of netconf slot 2019/03/25 1000
          https://www.youtube.com/watch?v=aw0fRh1pvec
          
          Monday Session 2 - 2019/03/25 1350
          https://www.youtube.com/watch?v=GVSYk_PLPNY
          
          * Monday Session 1 *
          
          Rob Wilton and Company (55 min)
          YANG Versioning Design Team Update
          
          Requirements Draft update – Joe Clarke (5 mins)
          draft-verdt-netmod-yang-versioning-reqs-02
          • Design Team update & Solution overview – Rob Wilton (10 mins)
          • Semantic versioning for modules – Balazs Lengyel (20 mins)
          draft-verdt-netmod-yang-semver-00
          • Semantic versioning for YANG schema – Rob Wilton (10 mins)
          draft-rwilton-netmod-yang-packages-01
          • Schema version selection – Reshad Rahman (10 mins)
          draft-wilton-netmod-yang-ver-selection-00
          
          Joe presenting on requirements -
          https://datatracker.ietf.org/meeting/104/materials/slides-104-netmod-sessa-yang-versioning-design-team-update-00.pdf
          
          slide 10: who feels rfc7950 section 11 is sufficient and does not
          require changes?
          
          Martin: Is the question really about NBC
          
          Joe: That is later
          
          Lada: Section 11 doesn't belong in yang definition
          
          Joe: Interesting observation, that was not discussed as part of the
          solution discussion.
          
          Lou: Would be more comfortable with question if it didn't include section
          11 in the question
          
          Joe: The question is a bit rough, but wanted to scope the question,
          e.g., exclude yang next discussion
          
          On questions 2: "Are NBC changes required?"
          
          Juergen: question is under specified.
          
          joe: are nbc changes required (allowed) to an existing node in a given
          yang module?
          
          Martin: (Andy's solution from the list) They happen, might be better to
          describe them as sometime more like a deviation, i.e. a way to express
          them, but don't indicate that they are good.
          
          Acee: It would be useful to describe the workflow for clients and servers.
          
          Joe: We are trying to describe this as guidelines in the solutions
          document.
          
          lou: I think we all agree that we need a better solution about
          non-backward compatible changes.
          
          joe: do you object to what the requirements documents?
          
          lou: not but it could be improved to not specify the solution.
          
          statement I don't really care if it's published an RFC I think it's very
          important that we have
          a working group document that establishes consensus on or defines the
          consensus of what it is we're trying to solve
          
          martin b: agreed, but want it understand if it will be published or not?
          
          Kent: (Polling)
          Should requirements doc be published as an RFC - very few
          Sould requirements doc NOT be published as an RFC -  the same
          Should we defer this decision - most (~2x more, but still few in the room)
          
          slide 14
          
          joe:  is branching required, and if so how much branching is needed and
          for clarity?
          
          Christian Hopps:(For branching) Should narrow down the scope? Focus on
          vendor specific modules. don't see any  need for branching in standards
          models. vednor models have release trains and other requirements.
          
          joe: just because something is supported doesn't mean one has to use it.
          
          I don't know if it's still valid but this was heard on the design team a
          few months ago so maybe there is a need maybe not here in ops area that
          we've heard but in routing area that was something that came up on one
          of our calls
          
          lada: agree that ietf shouldn't need branches
          
          joe: from requirements standpoint yes branching should be supported.
          
          lou: replace required with allowed
          
          rob: l2sm is an example. the just published a new revision to get around
          lots of bugs.
          
          andy: multiple release trains only for vendors and other sdos.
          
          joe: sounds like this should be allowed.
          
          tim c: we do have this model in place in the bbf
          
          runs out of time for additonal presentations on the agenda.
          
          scheduling of informal open YANG versioning Design Team meeting 03/28
          at ietf.
          
          meeting ends.
          
          * Monday Session 2 *
          
          Introduction
          
          Chairs (10 minutes)
          Session Intro & WG Status
          
          Chairs: the following will be LCed after the meeting
          –draft-ietf-netmod-intf-ext-yang-07draft-ietf-netmod-sub-intf-vlan-model-05
          
          Robert Sparks: IETF is managing YANG Catalog
          
          WG documents items:
          
          Balazs Lengyel (10 min)
          YANG Instance Data File Format
          https://tools.ietf.org/html/draft-ietf-netmod-yang-instance-file-format-02
          
          Balazs Presenting.
          
          kent: could I get a sense for the room how many people have read this
          draft raise your hand please this version of the draft yes so it's a
          few oh good
          
          after we see some more review comments we can gauge where we are on last
          call so it's really
          
          Martin or Andy (10 min)
          YANG Data Structure Extensions
          https://tools.ietf.org/html/draft-ietf-netmod-yang-data-ext-02
          
          martin presenting
          
          lada - don't see benfit of using restconf yang data model
          
          joe: yang catalog would be of benifit from instance data
          
          erick: would use it for yang push
          
          kent: is it important to maintain the -ext structure?
          
          rob: why does the instance document need to use yang data at all? (lada's
          comment)
          
          other approach is to just use an annotation.
          
          joe: this extension allows lists to not need a key element
          
          lou: please add to you list how this impacts tree diagrams?
          
          lou: how many have read this version ( a few)
          how many have read any version? (one more)
          for both documents we'll have to talk among chair about last call before
          montreal, may use a as forcing function for review.
          
          Kent Watsen (10 min)
          Handling Long Lines in Inclusions in Internet-Drafts and RFCs
          https://tools.ietf.org/html/draft-ietf-netmod-artwork-folding-01
          
          christian - is the martins suggestion work for all cases?
          
          kent - seems like it has a dangerous chance of collision.
          
          martin: cases where the pretty thing doesn't work
          
          kent: for automated folding you would need a smart folder
          
          martin prefers one
          
          christian: should have one way even if it's a little bit harder
          
          rob: don't think a single backslash can cover all cases.
          
          kent:  poll on approaches - double backslash only  (no suppport)
          both methods (some support)
          only single (also some support)
          
          kent question footer
          a (leave draft as is)
          b add a footer
          
          lou: clear majority for a over b
          
          Non-Chartered items:
          
          Kent Watsen (15 min)
          YANG Next Analysis
          
          kent: 70 issues over 3 years created in yang next issue tracker.
          
          Kent: Where should we focus
          
          juergen: two other dimensions, do we know how to solve? do we have
          consensus?
          
          Qin Wu (10 min)
          Factory default Setting
          https://tools.ietf.org/html/draft-wu-netmod-factory-default-02
          
          Kent (polling)
          - How many have read draft: a reasonable number
          - How many interested in problem addressed in draft: a reasonable number
          - Now many think we should not work on this topic: none
          - How many think draft should be adopted as starting point: a reasonable
          number
          - How many think it should not be adopted: none
          
          Adoption poll will be taken to the list
          
          Qin Wu (10 min)
          NMDA Base Notification for Applied Intended Configuration
          https://tools.ietf.org/html/draft-wu-netmod-base-notification-nmda-01
          
          Kent (polling):
          - How many have read draft: very few
          - how man think intersting:  also few
          
          lou: how many people think this is an area we should be spending time
          on? (a little more)
          
          Lou: Need more feedback from group, please send a summary to the list
          of objectives  to list to try to generate interest
          
          Christian Hopps (10 min)
          YANG Geographic Location
          https://tools.ietf.org/html/draft-chopps-netmod-geo-location-01
          
          Kent (polling)
          - How many have read draft: a few
          - how man think intersting:  more
          - how many would like to see document used as basis: a good number
          - How many think it should not be adopted: none
          
          Adoption poll will be taken to the list
          
          Juergen Schoenwaelder (15 min)
          Update of Common YANG Data Types (RFC 6991)
          https://tools.ietf.org/html/draft-schoenw-netmod-rfc6991-bis-00
          
          Kent (polling)
          - How many have read draft: a reasonable number
          - How many interested in problem addressed in draft: a reasonable number
          - Now many think we should not work on this topic: none
          - How many think draft should be adopted as starting point: a reasonable
          number
          - How many think it should not be adopted: none
          
          Adoption poll will be taken to the list
          
          Update of Common YANG Data Types
          Jürgen Schönwälder
          
          rob: type defs are cheap so define both nanoseconds and minutes (time
          resolution)
          
          lada: host type should be restricted narrowly
          
          chris: does the canonical format go down to seconds?
          
          kent: hundreths of seconds
          
          ossibly more types (days weeks hours months)
          
          Lou (polling)
          - How many have read draft: a reasonable number
          - How many interested in problem addressed in draft: a reasonable number
          - Now many think we should not work on this topic: none
          
          chris: we're adding more common types
          
          lou:  does it make sense to rev this as a bis. lets use the model of
          keep reving this
          
          rob: if we delay by and extra year we'll have more to add.
          
          lou: lets see how fast we can do it.
          
          Michale Wang / Chongfeng Xie (10 min)
          A YANG Data model for Policy based Event Management
          https://tools.ietf.org/html/draft-wwx-netmod-event-yang-01
          
          lou: how many have read this (a few)
          maybe it's early but how many this is a starting point (some)
          adopting now (less)
          wait a bit (few)
          
          this is coming out of yang push dt in netconf
          
          



Generated from PyHt script /wg/netmod/minutes.pyht Latest update: 24 Oct 2012 16:51 GMT -