Connection details ------------------ * Date: May 16, 2018 * Time: 8-9AM DST, 17:00 CEST: https://www.worldtimebuddy.com/?qm=1&lid=2988507,1816670,5391959,5128581&h=2988507&date=2018-05-16&sln=17-18 * Webex Link: https://cisco.webex.com/ciscosales/j.php?MTID=m356ee15ed34e05dfa9c876815312e1a2 * Meeting number: 202 477 894 * Meeting password: QprtWqpe (77789773 from phones) * Join from a video conferencing system or application * Dial 202477894@cisco.webex.com * Join by phone * +1-866-432-9903 Call-in toll-free number (US/Canada) * +1-408-525-6800 Call-in toll number (US/Canada) * Access code: 202 477 894 * * Global call-in numbers: * https://cisco.webex.com/ciscosales/globalcallin.php?serviceType=MC&ED=410481357&tollFree=1 Minute takers ------------- * Ana Minaburo * Pascal Thubert * Dominique Barthel * Julien Catalano Attendees --------- * Ana Minaburo * Pascal Thubert * Dominique Barthel * Laurent Toutain * Carles Gomez * Juan-Carlos Zuniga * Julien Catalano * Alex Pelov * Edgar Ramos * Diego Dujovne * Ricardo Andreasen Past Attendees --------- * Alex Pelov * Felipe Díaz-Sánchez * Ana minaburo * Dominique Barthel * Laurent Toutain * Carles Gomez * Ivaylo Petrov * Juan-Carlos Zuniga * Julien Catalano * Orne Brocaar * Pascal Thubert * Vijay Gharge * Orne Brocaar * Paventhan Arumugam * Paul Duffy * Pascal Thubert * Alex Pelov * Laurent Toutain * Ana Minaburo * Vanessa Valderrama * Dominique Barthel * Julien Catalano * Edgar Ramos * Carles Gomez * J Sanchez * Ramon Sanchez * Juan-Carlos Zuniga * Felipe Díaz-Sánchez Action Items ---------------------------- Chairs: find reviewers for drafts Agenda ------ * [17:05] Administrivia [10min] o Note-Well, Scribes, Agenda Bashing o Status of drafts * [17:15] SCHC WGLC [35min] * [17:45] CoAP SCHC [10min] * [17:55] AOB [ 5min] Todo ------- Laurent to propose text on ticket 18 Pascal to propose text on UDP checksum compression Minutes ------- * [17:09] Administrivia [10min] o Note-Well, Scribes, Agenda Bashing o Status of drafts Pascal: opening, note-well, bluesheets (we need your name, blue-sheets are now requested) * [17:10] Agenda Juan-Carlos: just had a call on OAM for LPWAN. Compression is only one aspect. ICMPv6 is primary tool. Pascal: we need to update the milestones. We are about a year overdue. Pascal: estimate for submission to IESG for IPv6 compression? Ana: before summer Pascal: estimate for CoAP compression submission? Laurent: July is a good target. Pascal: publish something simple to start, and extend it later. TODO: find reviewers for the drafts. Candidate on this call? none heard. Pascal: we need to recharter. Pascal: UDP checksum compression. Put a reference to RFC6282. Alex: should we discuss probabilities? Pascal: if fragmented, we have a MIC. If not fragmented, we have to discuss L2 CRC perforance. If not good enough, cannot elide UDP checksum. Juan-Carlos: RFC6282 is not straightforward. Discussion still needed in SCHC document, not a straight reference. Pascal: can help with writing this section since wrote 6282. Alex: each technology must justify if and why UDP checksum can be elided. Laurent: this text should be in the IPv6/UDP section. Pascal: what are the news regarding the technology documents? They should be adopted. This is already in the charter. Juan-Carlos: adoption could be done by/at (?) the July meeting. * [17:30] SCHC WGLC [35min] Ana: continue the work on tickets; giving a status on the closable ones Ana: ticket 15 updated on the technology documents Ana: decoupling frag and compression. Dominique suggest to adopt terminology fragmentation and reassembly to separate the 2 parts of the process. Juan Carlos and Pascal support the proposal Dominique: can have a F/R process just like we have a C/D process Edgard supports Ana: OK, not heavy to do, will be done. Next point by Dominique "A SCHC" or "An SCHC": Leave that open and let the RFC editor decide. "A SCHC" (pronounced /ʃiːk/) has room support. Ana: Ticket 13 on terminology closed Replace "Part of SCHC packet" with "Portion of SCHC packet" Replace "Fragment" with "Payload Fragment" Use Compression Residue consistently instead of Compress Residue or Compressed Residue. Pull Request on Github issued by Dominique a few hours ago to that effect. Ticket 18: Need to explain better when there is a fixed or variable parameter hw MSB LSB can be used Removing the y argument from the LSB CDA makes the situation much simpler. We should explain in the draft what happens with fixed-lenght and variable=length fields. Dominique: this MSB/LSB CDA is byte-wise. Laurent said we could introduce a bitwise MSB/LSB later Laurent to propose text Ticket 19: Fragmentation Terminology OK to be closed (transfered to ticket 20) Ticket 14: Legacy Devices not sure how this is meant to work. not sure this a standardization issue or a implementation trick. will document in Appendix. Alex: focus on main issues. Discussion on process. Every Ticket must be resolved and the resolution must be documented. However, we can make changes in the draft without opening new Tickets. Virtual-Corridor-meeting next tuesday 4-6pm Paris time Attendees: Ana, Laurent, Dominique, Juan-Carlos (tbc), Carles (part-time), .... * [xx:xx] CoAP SCHC [postponed] * [18:08] meeting closed