Minutes of the IPWAVE WG meeting at IETF 98
FRIDAY, March 31, 2017
0900-1130  Morning Session I, Zurich E/F

Chairs: Russ Housley, Carlos J. Bernardos
Minute takers: Danny Moses, Robert Moskowitz
Jabber scribe: Robert Sparks


09:00 Administrativia
      Presenter: Chairs

- Note-Well, Blue Sheets, Scribes.
- Agenda run-through; no bashes.
- Status update: one WG document, two milestone documents not yet with a
  WG document adopted.


** IPWAVE WG documents

09:10 Transmission of IPv6 Packets over IEEE 802.11 Networks in mode 
      Outside the Context of a Basic Service Set (IPv6-over-80211ocb)
      Presenter: Alex Petrescu (AP)
      Draft: draft-ietf-ipwave-ipv6-over-80211ocb

This is currently the only WG adopted document (adopted in Seoul).
Issues solved seeking confirmation from the WG:
  - New figures - Ethernet adaptation layer, and interface between the
    IPv6 and MAC as seen by IEEE.
  - Propose to call the interface SNAP.
  - Add the 802.11 Trailer (Frame Check Sequence) to the Ethernet
    Adaptation Layer.
  - The “Address Mapping – Unicast” section is empty. The reason for
    that is that the authors are waiting for RFC2464bis to be more
    advanced.
    * Bob Hinden (BH): (editor of 2464bis) yes, the draft is in working,
      will look at the issues being raised.
    * Bob Moskowitz (BM): have at 1609 to resolve the privacy concern.
    * Suresh Krishnan (SK), area director: this section should discuss
      how IP addressed are created using MAC addresses. The text (that
      Alex thought is confusing) is correct, but not necessary (or
      relevant).
  - IPv6 prohibition status.
    * Michelle Wetterwald (MW): some channels are used for safety
      message only so change the text accordingly, without indicating
      specifically which channels prohibit IPv6. 
    * BM: channel utilization is national-specific and there are
      various geos. So propose to use the term ‘national channels’ and
      refer to national-specific channel utilization docs.
  - RSU -- Road Side Unit -- this is the term that was select (there
    were other suggestions).
    * Carlos J. Bernardos (CB): prefers the term 'Router'.
    * Andrew: yes, I like ‘Router’ here.
    * Georg: RSU is used in 3GPP for other means, so make sure there is
      no confusion. 
  - The rest of the issues were resolved -- not seeking confirmation.
  - Multi-channel issue -- recommendation to handle multi-channel in
    another document.
  - Handovers -- likewise -- write another document.
    * Russ Housley (RH): add a reference for IP security layer.
  - TCLAS -- mapping from/to IPv6 Traffic Class field -- another document
  - Certificates -- another doc
    * SK, as AD: but the WG is not chartered to write more documents. To do
      so would require the WG to re-charter 
  - ETSI CAM and IP -- removed the appendix about non-IP communication.
  - Privacy -- refer in function addressed in IEEE 1609.3 clause 5.5.1
    and IEEE 1609.4 clause 6.7.
    * BM: add the year of the spec.
    * MW: +1 for removing the appendix.
  - Improved privacy paragraph. Emphasis on the issue of being tracked.
  - New figures -- showing message flows of IEEE802.11 and 802.11 OCB
    (the OCB figure is the new one).
    * RH: figure (a) does not show bidirectional messages; please fix.
    * BM: AP should be changed to STA (in ad-hoc mode).
    * BM: does this figure have any value.
    * AP: yes for fast readers.
    * BM: also add in BSS (Basic Service Set) mode in figure a.
    * Dorothy Stanley (DS): figure a illustrates infrastructure mode, so
      AP is correct.
  - EtherType -- add a description of the bit string: EtherType 0x86DD.
  - 802.11 OCB and Beacons.
    * DS: there are IEEE 802.11 Beacons; please fix the text.
  - Multiple interfaces -- added text referencing RFC5648.
    * SK: why is it useful? I prefer the previous text.
    * AP: OK.

RH, as chair: The draft should be ready for WGLC before Prague. Please
pick up the pace.

** IPWAVE charter related items.

09:35 Survey on IP-based Vehicular Networking for ITS
      Presenter: J. Jeong (JJ)
      Draft: draft-jeong-ipwave-vehicular-networking-survey-02

This is about a survey.
  - Updates section 4.4 (cross-layer identities management in ITS
    stations) and section 9 (standard activities about vehicular
    networks).
  - Describe objectives, assumptions on Vehicular NWs, the different
    categories and various standard activities.
  - IEEE 1609 -- a suite of standards for WAVE.
  - Provide a high-level for the various 1609 specs.
    * BM: 802.2 does not exist anymore, so the diagram should not
      show it.
  - Describe ETSI ITS specs.
  - Describe ISO ITS specs.
  - Next steps: Requests adoption by the WG as a "ITS General Problem
    Area".
    * MI: IEEE 802.11p is a MAC protocol, but it is not the only one to
      be considered.
    * JJ: will involve others in the draft.
    * AP: Is there a charter for ITS General Problem Area?
    * JJ: yes.
    * AP: so I support the adoption.
    * CB, as chair: How many people read the document? About 5. 
    * CB, as chair: Need additional people to read the document before
      an adoption call.  We will ask on the mail list in a few weeks.

09:50 Problem Statement for Vehicle-to-Infrastructure Networking
      Presenter: J. Jeong
      Draft: draft-jeong-ipwave-v2i-problem-statement-00

  - Updated the security and privacy sections
  - The draft discuss Vehicle to infrastructure networking: Objective
    and assumption of V2I.
  - Authentication and access control, Periodic change of MAC and IP
    addresses and Confidential data exchange
  - Plans to merge with the V2V Problem Statement draft
    (draft-petrescu-its-problem).
  - Next steps: Requests adoption by the WG as a "Problem statement".
    * CB, as chair: How many people read the document? About 5. 
    * CB, as chair: Need additional people to read the document before
      an adoption call.  We will ask on the mail list in a few weeks.