Agenda and Meeting information Meeting : IETF95 Monday, April 4, 2016 (ART)
Time : 14:00-15:30 Monday Afternoon session I (90min) Location : Room Buen Ayre B, Hilton Buenos Aires, Buenos Aires, Argentina Chairs : Pascal Thubert <[email protected]> Thomas Watteyne <[email protected]> Responsible AD : Brian Haberman URLs : http://tools.ietf.org/wg/6tisch/ https://datatracker.ietf.org/wg/6tisch/ https://www.ietf.org/mailman/listinfo/6tisch https://bitbucket.org/6tisch Intro and Status [5min] (Chairs) Note-Well, Blue Sheets, Scribes, Agenda Bashing New charter and status docs [20min] (Chairs) * Status Documents * Status 6lo / ROLL * New Charter * Milestones * Action Plan Plugtests * Announcement ETSI 6TiSCH #2 Plugtests [7min] (Miguel Angel Reina Ortega) * Announcement ETSI 6TiSCH #3 Plugtests [3min] (Miguel Angel Reina Ortega) Dynamic Scheduling * <draft-wang-6tisch-6top-protocol-00> [15min] (Xavier Vilajosana) * <draft-dujovne-6tisch-6top-sf0-01> [15min] (Diego Dujovne) * call for WG adoption Security * status of the work and action plan [10min] (Michael Richardson) Unchartered items, time permitting * <draft-satish-6tisch-aodv-rpl-00> [10min] (Satish Anamalamudi) Any Other Business [2min] (Chairs) Resources * agenda: https://datatracker.ietf.org/meeting/95/agenda/6tisch/ * presented slides: TODO * Meetecho recording (audio+video): TODO * Jabber log: http://www.ietf.org/jabber/logs/6tisch/2016-04-04.html Volunteers * Scribes * Dominique Barthel * Charlie Perkins * Keoma Brun-Laguna * Jabber * Ines Robles Minutes * [14.00] [expected: 14.00] Meeting starts * [14.00] [expected: 14.00] Intro and Status (Thomas Watteyne) [5min] * change in agenda: Tero will present IEs * see draft-kivinen-802-15-ie-00.txt * [14.03] [expected: 14.05] (Tero Kivinen) [5min] * 16 IE codes available, IETF can get one, to share between WGs. * subtypes to be allocated by IANA. * Tero requests for comments, on 6lo or 6TiSCH mailing list. * Q&A: Tero suggest one framework on how IETF uses its assigned code. Will chase AD's to find a sponsor for this draft. * Action item: Chairs to coordinate about AD sponsoring * [14.07] [expected: 14.10] New charter and status docs (Pascal Thubert) [20min] * -minimal draft: answered all INT AREA comments. Expect feedback fron INT DIR. * 6lo routing header split into one draft at 6lo and one at ROLL. Both now in last call. * Gabriel asking for feedback about 6lo-dispatch * Hop by Hop at 6man: 6man considering preventing any new use of HbH * 6TiSCH WG has rechartered. Thanks Brian! * Current work items 6P, SF0, secure bootstrap, updating architecture doc, requirements to Detnet. YANG data model differed. * Plugtest in Berlin [very important], if you have an implementation, please join. * need to really get momentum on the security aspect. * [14.16] [expected: 14.30] ETSI 6TiSCH #2 and #3 Plugtests (Miguel Angel Reina Ortega, presented by Thomas Watteyne) [5min] * overview of past event in Paris. 12 companies. 14 test cases. Main point was 6top protocol and 6lo RH. * did not test SF0, considered was not mature enough for interop. * next event in Berlin, scope not completely defined. Probably SF0 and BB routing (although not on the slide) * Check actual dates: July 16-17?. * [14.21] [expected: 14.35] draft-wang-6tisch-6top-protocol-00 (Xavier Vilajosana) [15min] * renaming of -sublayer draft * renamed some fields, added 3-way transaction * 6top sits between 15.4e and next upper layer * intended use is for 6top to run a different slot frame from -minimal, concurrently. * in 3-step mode, requester only requests number of cells, and receiver suggests list of cells. * Thomas: this draft needs update to take into account new proposed management of IEs at IETF. * see draft-kivinen-802-15-ie-00.txt * metadata for extra info to be exchanged between SF, unknown to 6top * 3rd step is called Confirmation, same format as response * draft has guidelines for SF designers. ANy SF has to specify which statistics 6top should gather for the SF to be able to make its decisions * Slide about "IEEE Liaison Considerations" will need changes in view of new draft from Tero Kivinen re: IEs * Thomas: this is -00 but actually renaming of a quite mature -sublayer draft. Will do preliminary call for adoption after next presentation. * Q&A: [no questions] * [14.35] [expected: 14.50] draft-dujovne-6tisch-6top-sf0-01 (Diego Dujovne) [15min] * no longer supposes that application explicitely requests bandwidth. * Blacklist also possible in addition to white list of cells. * Bandwidth Estimation algorithm: do a little over-provisioning because guessing from observed traffic. * Relocation request * Allocation policy translate bandwidth allocation into cells (taking into account each cell's PDR). * CellList / WhiteList o TODO: o Timestamp o Metadata o node behaviour at boot. Extra cells for speeding up the boot process, to be removed later on. * Q&A: * Xavi on Jabber: will the draft provide recommended value for threshold? DIego: not at this point. Thomas on jabber: I believe we should have recommended values in there, to insure interoperability, although it might not satisfy everything, RFC6550 includes RECOMMENDED values * Pascal: over-provisioning. For each child or for all children? Diego: will think about it. * Thomas 256 values for SF ids. SF0 is expected to be the simplest one. * [14.46] [expected: 15.05] call for WG adoption (Chairs) [5min] * 6top and SF0 are companion drafts. Been worked on for months, just recently appeared on the charter. * Pascal: (6top) anybody opposes WG adoption for 6top adoption? Raise hand if you thinks it time to approve (15 hands). Any opposition? none same questions regarding SF0: Approve? ~7 hands. Opposed? none.[to be confirmed on the mailing list] * [14.49] [expected: 15.10] status security (Michael Richardson) [10min] * From the 6tisch point of view non have changed * JCE changed named to ANIMA register * assumes manufacturer installed certificate * A lot of the work have changed to Wordking Group ?? o ANIMA and 6TiSCH contrasts: * ANIMA use HTTPS while 6T prefers DTLS/CoAP + 6top o ANIMA is not really constrained compared to 6TiSCH o ANIMA and NETCONF contrasts * 6TiSCH vs NETCONF: * both use YANG * ... * Join Problem: * new, potentially malicious, nodes dropped in the network without breaking everything. * How to tunnel traffic from new node to registrar through Join Assistant Discussed at length in ANIMA. see draft-richardson-anima-state-for-joinrouter-00 * Q&A: * Thomas: when can we start using stuff from ANIMA? * Michael: June. * Pascal: reform Design Team? * Michael: first have running code and see what happens. We have written enough documents. * [15.05] [expected: 15.20] draft-satish-6tisch-aodv-rpl-00 (Satish Anamalamudi) [10min] Presented by Mingui Zhang on Satish'es behalf * Two routes instances for route discovery * extends RPL. One instance for Route Discovery from Source do Dest, another one for the reverse direction. * new "A" flag in DIO to tell if link is asymmetrical. * if all links symmetrical, destination will receive DIO with A flag reset: instance 2 will use the same links as Instance1. If any link is asymmetrical, destination will receive DIO with A=1. Destination will multicast Instance2 message. * no address vector in response message, bandwidth saving. o Q&A: ? Pascal: 6TiSCH is INT area WG. This should be presented at ROLL for potential adoption. 6TiSCH can use it later. ? Pascal: this is evolution of P2P-RPL (experimental track). This is standards track. Can you summarize changes, improvements? Charlie Perkins: standards track: we want to have implementations, P2P experimental has been out for some time, people understand it now. ? Satish: we avoid address vector completely. ? Ines: come to ROLL meeting Tuesday 4:20pm, we have an open floor slot at the end of the meeting, you can squeeze in and briefly mention your work. ? Thomas: You addressed a lot asymmetric links, what exactly defines an asymetrical link, is it the path or the cells. => resource level asymetry ? Pascal: now confused. Allocation of resource is after path has been established. * [15.22] [expected: 15.30] Any Other Business (Chairs) * Pascal expresses thanks to those who helped get the IE discussion done. Pat Kinney, Tero, Charlie, .. * [15.23] [expected: 15.30] Meeting ends Cheers, Pascal
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