Re: [6tsch] the first 30min
Qin Wang <qinwang@berkeley.edu> Thu, 18 July 2013 15:21 UTC
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Date: Thu, 18 Jul 2013 23:21:16 +0800
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From: Qin Wang <qinwang@berkeley.edu>
To: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
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Cc: Thomas Watteyne <watteyne@eecs.berkeley.edu>, Marc Blanchet <marc.blanchet@viagenie.ca>, 6TSCH <6tsch@ietf.org>, "Ted Lemon (ted.lemon@nominum.com)" <ted.lemon@nominum.com>
Subject: Re: [6tsch] the first 30min
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Pascal, I understand the conclusion should be drawn by people from Maria Rita's talk and fully agree with you. Then, I prefer "what is TSCH proven to be great for?" Thanks Qin On Thu, Jul 18, 2013 at 10:58 PM, Pascal Thubert (pthubert) < pthubert@cisco.com> wrote: > Hello Qin;**** > > ** ** > > Just to make sure, the quote is not what I expect Maria Rita to say as her > conclusion but the conclusion that people should have drawn from her > presentation, do we agree?**** > > I agree the title is not too specific… I’d think that “what is TSCH used > for in the real world?”, or “what is TSCH proven to be great for?” is even > closer than “how does it work?”.**** > > The cool thing with the broad title is that we have some freedom to play a > little but with the message and the content, which we are still determining > at this time : ) **** > > ** ** > > Cheers, **** > > ** ** > > Pascal**** > > ** ** > > *From:* Qin Wang [mailto:qinwang@berkeley.edu] > *Sent:* jeudi 18 juillet 2013 16:29 > *To:* Thomas Watteyne > *Cc:* Pascal Thubert (pthubert); Marc Blanchet; 6TSCH; Ted Lemon ( > ted.lemon@nominum.com) > *Subject:* Re: [6tsch] the first 30min**** > > ** ** > > Hi Pascal, **** > > ** ** > > The three stages are very clear in logic. Just a comment on the sub-title > of the second part.**** > > ** ** > > If the conclusion from Maria Rita talk is expected as "the crowd has a > sense of a huge value for the real world, even for everyday life", the > sub-title may need to be changed, e.g. "How it works?" or something else.* > *** > > ** ** > > Thought?**** > > Qin**** > > **** > > ** ** > > **** > > ** ** > > On Thu, Jul 18, 2013 at 8:50 PM, Thomas Watteyne < > watteyne@eecs.berkeley.edu> wrote:**** > > Pascal,**** > > ** ** > > Absolutely, I saw your attached e-mail, and I agree we're very close. I > was going through it when preparing this e-mail, after realizing we will > probably be moving thing around between Maria Rita's, Xavi's and my own > slides.**** > > ** ** > > I agree with your modification to the conclusion and the story you're > describing.**** > > ** ** > > Thomas**** > > ** ** > > On Thu, Jul 18, 2013 at 2:26 PM, Pascal Thubert (pthubert) < > pthubert@cisco.com> wrote:**** > > Hello Thomas**** > > **** > > I’d discuss the nutshells rather than the content (which is close to > perfect; ) And I’d argue that the nutshells are also the conclusions.**** > > Did you see the thread attached? We’re mostly in line but it seems you > went through it all again. I understand your logic, this is a nice story.* > *** > > My 2 centimes:**** > > **** > > - [5min] draft-watteyne-6tsch-tsch-lln-context-02 [Thomas] **** > > > - *In a nutshell: IEEE802.15.4e TSCH is Deterministic Wirelessstandard > ***** > > I expect that at this point the crowd understands that deterministic is a > new and immensely powerful complex, enabling control loops and this key to > OT/automation networks, and that we can actually achieve it on wireless.** > ** > > - [10min] what is IEEE802.15.4e TSCH? [Maria Rita] **** > > > - *In a nutshell: IEEE802.15.4e TSCH is a proven technology which > opens up IT/OT/automation convergence if coupled with IPv6***** > > I expect that at this point the crowd has a sense of a huge value for the > real world, even for everyday life. If ùy nutshell is Maria Rita’s > conclusion then we have a great transition for Xavi (see my attached mail) > **** > > - [15min] what is missing? [Xavi] **** > > > - *In a nutshell: Some Blocks but mostly Glue are missing so 6TSCH is > doable***** > > By then people must also be convinced that there is work to be done, > understand what the scope of that work is, and that it is achievable within > IETF classical operations.**** > > **** > > Works for you? **** > > **** > > Also, do you mind copyting the list or at least the other speakers and Ted > and Marc?**** > > **** > > Pascal**** > > **** > > *From:* twatteyne@gmail.com [mailto:twatteyne@gmail.com] *On Behalf Of *Thomas > Watteyne > *Sent:* jeudi 18 juillet 2013 14:08 > *To:* Maria Rita Palattella; Xavi Vilajosana; Pascal Thubert (pthubert) > *Subject:* BoF: the first 30min**** > > **** > > Xavi, Maria Rita,**** > > **** > > [CC'ing Pascal]**** > > **** > > The first 30min at the BoF will be ours to convey the following messages:* > *** > > - IEEE802.15.4e TSCH is a powerful new standard**** > - it's a proven technology**** > - we want to fit an IETF IPv6 upper stack onto it**** > - but pieces are missing**** > > We need to coordinate closely to avoid (1) that we repeat things and (2) > that we follow the same stream of thought. From the slides that are now in > the repo, I can see that we all are hesitant a bit about who says what.*** > * > > **** > > This e-mail is the start of the discussion we will have later today in our > "private" webex.**** > > **** > > I believe that, high-level, we could separate our speaking time as follows: > **** > > - [5min] draft-watteyne-6tsch-tsch-lln-context-02 [Thomas]**** > > > - *In a nutshell: IEEE802.15.4e TSCH is new L2 standard***** > - what we are presenting is the first draft generated by the group, > and which highlights what IEEE802.15.4e TSCH is and what is missing. It's > the document we used early on in the definition of the problem statement > within the 6TSCH group, and we therefore present early on in the BoF. > **** > - IEEE802.15.4 is a double standard (PHY and MAC) for low-power > wireless radio. It's a very well-known standard, used at the base of the > 6LoWPAN, CORE and ROLL WGs.**** > - IEEE802.15.4e is an amendment to its MAC protocol**** > - one of the modes is Timeslotted Channel Hopping (TSCH)**** > - TSCH allows low-power through synchronization, high reliability > through channel hopping**** > - nodes in the network follow the TSCH communication schedule**** > - published IEEE standard, April 2012**** > > > - [10min] what is IEEE802.15.4e TSCH? [Maria Rita]**** > > > - *In a nutshell: IEEE802.15.4e TSCH is a proven technology which > opens up new applications***** > - playing with the schedule allows for a clean trade-off between > throughout, latency, redundancy and power consumption**** > - allows for a high level of determinism and traffic engineering**** > - opens up to new range of applications which require high > reliability and low-power:**** > > > - **** > - Control loops in a wireless process control network, in which > high reliability and a fully deterministic behavior are required. > **** > - Umbrella networks transporting data from different independent > clients, and for which an operator needs flow isolation and traffic shaping. > **** > - Energy harvesting networks, which require an extremely low and > predictable average power consumption.**** > > > - an analogy of our work can be found in WirelessHART and ISA100.11a, > although these standards don't use IETF building blocks. Those standards > use a variant of Timeslotted Channel Hopping, but not IEEE802.15.4e. > **** > - we want to define how to run IPv6 on top of IEEE802.15.4e TSCH**** > - the IEEE802.15.4e standard only defines what nodes do once they > have a schedule, NOT how to build and maintain that schedule**** > > > - [15min] what is missing? [Xavi]**** > > > - *In a nutshell: blocks are missing***** > - some building blocks are missing to fit an IPv6 stack onto > IEEE802.15.4e TSCH. Most of them already exist. We want to provide > guidelines on how to glue them together.**** > - the main blocks are:**** > > > - (per draft-watteyne-6tsch-tsch-lln-context-02) guidelines to fully > define the behavior of the network:**** > > > - **** > - network formation**** > - election of timing parents needed for synchronization**** > - network maintenance**** > - security (mostly key management)**** > > > - building and maintaining the communication schedule:**** > > > - "the orchestra director"**** > - Both centralized and distributed approaches are > contemplating**** > - protocols to coordinate nodes and distribute information**** > > > - multi-hop dataflow**** > > > - integration with RPL (including feeding back metrics)**** > - packet switching and tunneling**** > > > - QoS and TE (includes different flow/packet priorities, traffic > classes, and mapping to layer 2 resources)**** > - ND and backbone architecture**** > > Thoughts? I ca go over this during the webex later today.**** > > **** > > Thomas**** > > ** ** > > > _______________________________________________ > 6tsch mailing list > 6tsch@ietf.org > https://www.ietf.org/mailman/listinfo/6tsch**** > > ** ** >
- Re: [6tsch] the first 30min Thomas Watteyne
- Re: [6tsch] the first 30min Pascal Thubert (pthubert)
- Re: [6tsch] the first 30min Qin Wang
- Re: [6tsch] the first 30min Pascal Thubert (pthubert)
- Re: [6tsch] the first 30min Qin Wang
- Re: [6tsch] the first 30min Maria Rita PALATTELLA
- Re: [6tsch] the first 30min Pascal Thubert (pthubert)