Session Date/Time: 08 Feb 2022 15:00

LPWAN

Summary

This interim meeting of the LPWAN Working Group focused on the publication status of several key drafts. Significant progress was reported on the compound-ack draft, with a shepherd identified and final edits pending. Updates to the shakeover-nbiot and yang-chic drafts were presented, moving them closer to Working Group Last Call. Discussions also covered the status of the shakeover-sigfox and oam drafts, with next steps outlined for each.

Key Discussion Points

Meeting Logistics: The chairs reminded participants of IETF policies, the Notewell, and encouraged collaborative minute-taking. Video recording was confirmed to be active.
Agenda Bashing: The proposed agenda covering compound-ack publication and yang-chic Working Group Last Call steps was approved without additions.
Action Items from Last Meeting:
- Shepherd for compound-ack: Dominic Barthel volunteered to shepherd the compound-ack draft.
- compound-ack updates: Juan Carlos presented an update, confirming the necessary text edits, with Sergio's help, are prepared and planned for publication within the next couple of days.
- yang-chic draft updates: Lauren mentioned updates made based on previous discussions regarding detect lifetime and compression feature.
Working Group Status and Document Advancement:
- draft-ietf-lpwan-shakeover-nbiot: Anna reported that the last modifications are being finalized, with publication of the next version and a request for Working Group Last Call (WGLC) expected within the next two weeks. This is well ahead of the March cutoff date. The need for a shepherd for this document was noted.
- draft-barthel-lpwan-oam: An action item was recorded to update the milestone publication date for the oam draft to "end of 2022".
Publishing draft-ietf-lpwan-compound-ack:
- Juan Carlos reiterated that the final edits would be published in the coming days.
- Once the edits are made and comments from the last WGLC are addressed, Dominic (as shepherd) will initiate the Intellectual Property Rights (IPR) call on the mailing list.
- After IPR declarations are received, the draft can proceed for ISG evaluation.
draft-ietf-lpwan-shakeover-sigfox: Juan Carlos indicated that updates implementing discussed changes are planned after the compound-ack draft moves forward. The goal is to prepare it for WGLC.
YANG Data Model Update (draft-ietf-lpwan-yang-chic):
- Lauren presented specific updates to the YANG model:
  - Changed max-window-size to window-size for compatibility with RFC 8724.
  - Clarified the description for max-interleave-frames.
  - The "no compression" feature was removed, making no-compression mandatory in the rule.
- Dominic will review these changes.
- Lauren plans to publish a new version soon and hopes to start the WGLC, with resolutions potentially discussed during the upcoming IETF meeting. She also plans to develop an Open Chic converter tool at the hackathon.
OAM Draft Adoption Status:
- A discussion arose about the adoption status of draft-barthel-lpwan-oam. Dominic will check the mailing list to confirm if it has been formally adopted as a working group document. If not, the chairs will initiate a call for adoption. Dominic noted that if the individual draft has expired, he would need to revise it before a call for adoption.
Any Other Business:
- Lauren informed the group that she will be contributing to an "Internet addressing gap analysis" draft in the INTAREA WG to include more comprehensive details about CHIC, differentiating it from 6LoWPAN. A pointer to the draft will be shared once the updated version is published.

Decisions and Action Items

Decision: Dominic Barthel will serve as the shepherd for the draft-ietf-lpwan-compound-ack document.
Action Item: Juan Carlos to publish the updated text edits for draft-ietf-lpwan-compound-ack within the next couple of days.
Action Item: Following publication of compound-ack updates and review, Dominic Barthel (shepherd) to initiate the IPR call on the mailing list.
Action Item: Anna to publish the final version of draft-ietf-lpwan-shakeover-nbiot within the next two weeks and request Working Group Last Call.
Action Item: Chairs to identify a shepherd for draft-ietf-lpwan-shakeover-nbiot.
Action Item: Chairs to update the milestone publication date for draft-barthel-lpwan-oam to "end of 2022".
Action Item: Dominic Barthel to check the adoption status of draft-barthel-lpwan-oam. If not adopted, chairs will initiate a call for adoption. Dominic will revise the draft if it has expired before adoption.
Action Item: Lauren to publish the updated draft-ietf-lpwan-yang-chic (incorporating changes for window-size, max-interleave-frames description, and mandatory no-compression).
Action Item: Lauren to share a pointer to the updated "Internet addressing gap analysis" draft (INTAREA WG) once her contributions on CHIC are published.

Next Steps

Proceed with Working Group Last Calls for draft-ietf-lpwan-shakeover-nbiot and draft-ietf-lpwan-yang-chic once the updated versions are published.
Advance draft-ietf-lpwan-compound-ack through the IPR process and towards ISG evaluation.
Address the adoption status of draft-barthel-lpwan-oam.
Continue work on draft-ietf-lpwan-shakeover-sigfox to prepare it for Working Group Last Call.