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Minutes Webex 26 July 2013, 6TSCH group
Note: timestamps in PDT.
Taking notes (using Etherpad)
- Xavi Vilajosana
- Pouria Zand
- Thomas Watteyne
Present (alphabetically)
- Alfredo Grieco
- Maria Rita Palattella
- Pascal Thubert
- Pouria Zand
- Qin Wang
- Rene Struik
- Thomas Watteyne
- Tom Phinney
- Xavi Vilajosana
Recording
- Webex recording (audio+slides,streaming)
- https://cisco.webex.com/ciscosales/lsr.php?AT=pb&SP=MC&rID=70184657&rKey=8558436cc958e8ce [1 Hour 11 Minutes]
Slides
- slides_130726_webex.ppt: slides shared during the call
Agenda
- Administrivia [2min]
- Approval minutes previous meeting
- Agenda bashing
- BoF updates [2min]
- Reminder dates
- Applications Area WG meeting
- Charter discussion [20min]
- Work Item 2 Rewording
- Work Item 3 Renaming
- Security Discussion
- Mobility Discussion
- Walk-through BoF slides [30min]
- Agenda
- Approval final slides
- Merged slides format
- Intro chairs
- Questions?
- Agenda pre-BoF meeting [5min]
- Consensus final slides
- Consensus merged slides
- Uploading slides and charter
- AOB [1min]
Action items
- Action item: Thomas to announce pre-BoF meeting to the ML
- Action item: Maria Rita to prepare last version of 2c slides.
- Action item: Pascal is working on the security item.
- Action Item: Thomas to push new language to repo, and send notification to ML.
- Action item: Thomas to create slides to present draft-watteyne-6tsch-tsch-lln-context-02 at pre-BoF meeting
- Action item: Pascal to create slides to present draft-thubert-6tsch-architecture-02 at pre-BoF meeting
- Action item: Thomas to announce changes to the agenda to ML.
Minutes
- [08.01] Meeting starts
- recording started at 8:01
- [08.02] Administrivia
- Approval minutes previous meeting
No concerns. Minutes approved.
- Agenda bashing
No concerns. Agenda approved.
- Approval minutes previous meeting
- [08.05] BoF updates
- Reminder dates
- as announced last week, pre-BoF meeting moved to Tuesday 9:30-11:15 in Tegel
- This meeting does appear in the official agenda
- Action item: Thomas to announce pre-BoF meeting to the ML
- Applications Area WG meeting
- Monday 09.00-11:30
- Pascal and Thomas will announce BoF there
- all are welcome
- BoF Questions:
- Let's address them at the end of the meeting today
- Reminder dates
- [08.07] Charter discussion
- Work Item 2 Rewording
- discussion about:
- rewording work item 2: PCEP only handles a portion what is needed. This makes our work a larger task than required.
- Work item 2 has been reworked:
- Requirements and Architecture.
- traffic from routing layer of the node to the PCE
- traffic from 6top to the PCE
- to manage both routes and schedule.
- new text already in the charter
- call for consensus
No concerns raised. Language approved.
- reword requires to reword 2c slides.
- Action item: Maria Rita to prepare last version of 2c slides.
- Action item: Pascal is working on the security item.
- discussion about:
- Work Item 3 Renaming
- Work item 3 renamed to "6TSCH distributed routes and tracks management" for consistency with name of work item 2.
- There were some questions on the ML about route management in the distributed case
- Call for consensus on the new title
Qin agrees with the explanation given by Pascal on the ML. No further concerns raised. Title approved.
- Security Discussion
- Context:
- security is currently not a numbered work item.
- Should we make it work item 7?
- Leave the text as is and post the question in the BoF, Whether it has to be considered an other item or no.
- [Rene] suggests to add the 7 in front of the work item as it is needed to have the security implications clear.
- [Pascal] Can Rene prepare a new text to replace slide 15.
- [Rene] Agrees to send note.
- [Rene] We need to first come up with a requirements and architecture document before developing a solution.
- [Thomas] Let's keep the charter text as-is for now, and wait for Rene's input.
- [Maria Rita] if we define one more work item, then we need to redefine the work items in the slides.
- [Maria Rita] I'm in favor of adding a 7 in front of the security text.
- [Rene] If we do that, we need to set the scope of the work item to informational
- [Thomas] shares his screen and edits the charter. Final text reads:
7. Produce "6TSCH Security architecture and requirements", and depending on the security requirements identified in the document, the group may work on a security solution and ask for security area review. This document will aim at Informational.
- [Thomas] Call for consensus on the new language.
No further concerns raised. New text language.
- Action Item: Thomas to push new language to repo, and send notification to ML.
- Context:
- Mobility Discussion
- context:
- should we support mobility in the charter?
- we have identified 2 scenarios where a small number of nodes can move inside a static network (moving cranes and mobile worker)
- we want to keep those use cases, but avoid that people think about swarms of mobile robots when hearing mobility
- [Xavi] Mobility is a strong word and is not the main role of these types of networks. We have to be careful with mobility as this is not the core of that technology.
- [Pascal] looking for a good term to talk about mobility in the 2c slides.
- Roaming
- slow mobility
- limited mobility
- context:
- Work Item 2 Rewording
- Pre-BoF meeting agenda.
- What do we expect for that pre-BoF?
- [Pascal] We could have the exact same agenda as in the afternoon, the pre-BoF meeting would a rehearsal.
- [Pascal] We need to leave at 11.15 sharp
- [Pascal] Still leaves us with 1h45, so enough time to go through the complete BoF material
- [Pascal] We can present the drafts during the pre-BoF meeting
- [08.41] Walk-through BoF slides
- Changes to the Agenda
- we need more time for open discussions and questions
- proposal: move part 3 to the morning. Keep rest of time for open discussions and questions.
- draft presentations will be in the morning out of an "official" session
- also recall two extra drafts in the morning. Present all 6 drafts
- Action item: Thomas to create slides to present draft-watteyne-6tsch-tsch-lln-context-02 at pre-BoF meeting
- Action item: Pascal to create slides to present draft-thubert-6tsch-architecture-02 at pre-BoF meeting
- Action item: Thomas to announce changes to the agenda to ML.
- Approval final slides
- Almost all slides are final.
- [Pascal] How to we handle questions during the BoF, we need to be clear.
- [Thomas] Proposal:
- at opening of BoF, chairs announce that only clarifying questions (no discussion) will be taken during presentation part (first hour).
- BoF questions are shown during the presentations to allow people to reflect, but no discussion yet
- after presentation, open mic for 20-25min
- when discussion over, or we run out of time, questions will be asked to the audience. Last slides contains all questions.
- Proposed questions:
- is this a topic that the IETF should address?
- are the goals of this WG clear, well-scoped, solvable, and useful?
- how many people are willing to edit documents, comment documents, implement?
- should a 6TSCH working group be formed?
- should a 6TSCH working group NOT be formed?
- Changes to the Agenda
- [09.08] AOB
- [Rene] During the BoF, it would be good to meet with the right people of other working groups (e.g. DICE, CORE) to discuss the possibility of a security solution which reuses as much as possible. That is, avoid to have to implement a completely different security solution for the different protocols in the protocol stack.
- [Thomas] Good idea. Confirm that this is a "task" rather than an item for the BoF.
- [Rene] yes.
- [09.12] Meeting ends
Updated