6lo WG Minutes - IETF 116, Yokohama 
  02:30-04:30 (UTC) @ G316
  09:30-11:30 (Meeting venue time) @ G316
  Friday, March 31, 2023

  Chairs: Shwetha Bhandari, Carles Gomez
  Responsible AD: Erik Kline 
		 
  Minute takers: Shwetha Bhandari
  Jabber scribe: TBD

Introduction and draft status Bhandari/Gomez 10 min
Agenda bashing; blue sheets; scribe; Jabber scribe
https://datatracker.ietf.org/meeting/116/materials/slides-116-6lo-6lo-chairs-introduction

IPv6 Multicast address registration draft - shepherd write up to be completed - AI Shwetha
No additions to agenda
Status update of 6lo Applicability & Use Cases Yong-Geun Hong 10 min
https://datatracker.ietf.org/doc/html/draft-ietf-6lo-use-cases-15
https://datatracker.ietf.org/meeting/116/materials/slides-116-6lo-status-update-of-6lo-applicability-use-cases

    Yong-Geun Hong presenting

    -16 will be ready for RFC editor - Erik will progress the draft when -16 is published

    Path-Aware Semantic Addressing for LLNs Luigi Iannone 15 min
    https://datatracker.ietf.org/doc/html/draft-ietf-6lo-path-aware-semantic-addressing-00
    https://datatracker.ietf.org/meeting/116/materials/slides-116-6lo-path-aware-semantic-addressing-pasa-for-low-power-and-lossy-networks

    Luigi presenting

    Luigi: It’s experimental now, it’s up to the WG if to standard track. Any comments here?

    Erik Kline > Requires implementation reference and deployment section.

    Luigi > will update on implementation reference

    On Slide 7 : Pascal Thubert > On P and H bit - The bits are mostly consumed by other drafts

    On Slide 7 : Kiran > Make the router and host bit explicit, suggests to use 2 bits , 1 bit for host, 1 bit for forwarder

    On Slide 7 : Luigi > discuss on the list

    Pascal > See section 7.1 of https://datatracker.ietf.org/doc/html/draft-ietf-6lo-multicast-registration#name-placing-the-new-p-field-in-

    Carles > To authors - other than security, multicast is also missing

    Reliability Considerations of Path-Aware Semantic Addressing Luigi Iannone 15 min
    https://datatracker.ietf.org/doc/html/draft-li-6lo-pasa-reliability-01
    https://datatracker.ietf.org/meeting/116/materials/slides-116-6lo-reliability-considerations-of-path-aware-semantic-addressing

    Luigi presenting

    Slide 12: Guangpeng Li > General comment: reliability part should be additional feature of PASA, it depends on redundancy conditions, redundant links and redundant nodes.

    Slide 12: Guangpeng Li > Another comment: whether to use multiple addresses mechanism should depend on applications, because some applications can not work with multiple addresses at all.

    Slide 12: Luigi > multiple addresses is not mandatory, it depends on application - applications do not have to change

    Slide 12: Guangpeng Li > We need more input and discussion from community including in the list.

    Carles to WG> need community discussion and feedback

    Transmission of SCHC-compressed Packets over IEEE 802.15.4 Carles Gomez 30 min
    https://datatracker.ietf.org/doc/html/draft-ietf-6lo-schc-15dot4-01
    https://datatracker.ietf.org/meeting/116/materials/slides-116-6lo-transmission-of-schc-compressed-packets-over-ieee-802154-networks

    Carles presenting

    End of presentation

    Stuart Cheshire > cryptographic security and integrity appreciated and needed. But making it optional leads to accidental corruption

    Carles > Need to check how many 15.4 use no security mode, integrity protection is sufficient with udp checksum.

    Stuart Cheshire > e2e security, studies show corruption happens not in transit but due to software bugs on the end systems. Worried about omiting integrity checks

    Pascal on chat > For all I know that mode may be used in short windows of time to set up communication After the join the l2 security is set up

Chat room:
Adnan Rashid
Please consider my vote for Pasa adaptation. I don’t remember if I gave my vote through email or not. 🙃

06:07:17 IST
Pascal Thubert
See section 7.1 of https://datatracker.ietf.org/doc/html/draft-ietf-6lo-multicast-registration#name-placing-the-new-p-field-in-

06:28:45 IST
Adnan Rashid
it would be a good contribution if SCHC use for 6lowpan-ND messages.

07:24:05 IST
Pascal Thubert
For all I know that mode may be used in short windows of time to set up communication

07:29:14 IST
After the join the l2 security is set up

Session concludes in 90 minutes