**Session Date/Time:** 08 Feb 2022 15:00

# [LPWAN](../wg/lpwan.html)

## 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.