IETF 99: Open Shortest Path First (OSPF) WG Agenda

Tuesday, July 18, 2017 (CDT) 13:30 - 15:30 - Afternoon Session I

Location: Karlin I/II
========================================================

Chairs: Acee Lindem
        Abhay Roy

WG Status Web Page: http://tools.ietf.org/wg/ospf/

1) Administrivia - 5 minutes
- Blue sheets
- Scribe/jabber
- Jabber room: ospf@jabber.ietf.org

2) WG Status Update - 15 minutes 
- Acee Lindem

Alia Atlas: New RFC on IPR - check it out.

See slides   
No comments   

3) OSPF YANG Model Update - 15 Minutes 
- https://datatracker.ietf.org/doc/draft-ietf-ospf-yang/
- https://datatracker.ietf.org/doc/draft-ietf-ospf-sr-yang/
- Yingzhen Qu

See slides

Acee Lindem: NDMA - wants to start a GIT repository
Avoid letting Ladha define it to avoid yin to yang conversion

4) OSPFv3 Extended LSAs Update - 10 Minutes
- https: https://datatracker.ietf.org/doc/draft-ietf-ospf-ospfv3-lsa-extend/
- Acee Lindem

See slides

Acee Lindem: Will open source implement this?

David Lamparter: No one working on it right now. Looking at SR - 
which may require doing this. But not committed to doing this yet.


5) OSPF LLS Extensions for Local Interface ID Advertisement - 15 Minutes
- https: https://datatracker.ietf.org/doc/draft-ppsenak-ospf-lls-interface-id/
- Peter Psenak

See slides

Alia Atlas: Not much discussion on the mailing list. If it is stable 
open to early allocation of codepoints but would like to see more 
discussion on the list to reflect that WG thinks this is stable.
Would like to decide about early allocation of codepoints by IETF100.

Peter Psenak: There is an existing implementation.

Alia Atlas: Work based on running code is more mature but it is still a 
pre-standard implementation. Could there be gaps?

Acee Lindem: Will start discussion to help make a decison about early 
allocation. Less concerned about early allocation requests in OSPF since 
the number of requests are few - unlikely to have collisions.
(Not like BGP-LS)


6) OSPF TE Attributes for non-TE Applications Update - 15 Minutes
- https://datatracker.ietf.org/doc/draft-ppsenak-ospf-te-link-attr-reuse/
- Peter Psenak

See slides

Abhay Roy: Some private comments of support have been received in addition
to the public comments of support on the list.

Alia Atlas: Agree that WG adoption polls have similar results in both OSPF
and IS-IS WGs.

Les Ginsberg: Consensus on WG adoption exists in both OSPF and IS-IS.
     Question for Alia, can't we follow the consensus?

Alia Atlas: We don't do voting. We have support from
      multiple affiliations. I have asked Chris Hopps
      for a virtual interim and some more work on use
      cases documents.

Les Ginsberg: If you look at the history of WGs and drafts, we've
     always adopted drafts with this level of support.
     Why have the WG chairs elected not to adopt the
     document?

Alia Atlas: Look at RFC 7822, are there valid technical
      objections? Case in point, is NVO3 with
      encapsulations. Would like to hear reasons
      for why this is extension is necessary.

Les Ginsberg: I was in the opposite position for IS-IS Encap
     draft since I didn't think it is necessary.
     WG consensus was to adopt.


7) OSPF NSSA ECMP to Multiple ASBRs Potential Errata - 10 Minutes
- https://datatracker.ietf.org/doc/rfc3101/
- Acee Lindem

Acee Lindem: Would like to handle this via errata.

Chris Bowers: Is there no possibility of causing routing loops?
Is this a  "SHOULD" vs a "MUST"?

Acee Lindem: Correct
Other rules insure this cannot happen.

Chris Bowers: Current implementations - be good to find out what is 
currently deployed.
Would like to know what existing implementations do.

Acee Lindem: One known implementation honors it - one doesn't.
Does open source honor it?

David Lamparter: We only started doing ECMP in the last year - not sure 
what it does.

Chris Bowers: Would like more time to look at this.