Re: [6tisch] 6P and Sf0 issue: Statistics for SFs and Relocation
Thomas Watteyne <thomas.watteyne@inria.fr> Fri, 11 March 2016 14:23 UTC
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Date: Fri, 11 Mar 2016 15:23:10 +0100
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From: Thomas Watteyne <thomas.watteyne@inria.fr>
To: "Prof. Diego Dujovne" <diego.dujovne@mail.udp.cl>
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Cc: "Pascal Thubert (pthubert)" <pthubert@cisco.com>, "6tisch@ietf.org" <6tisch@ietf.org>
Subject: Re: [6tisch] 6P and Sf0 issue: Statistics for SFs and Relocation
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+1 On Friday, March 11, 2016, Prof. Diego Dujovne <diego.dujovne@mail.udp.cl> wrote: > Pascal, > Agreed. Then we should add a > new SHOULD item at the end of the > > "4.2. Requirements for an SF" > > section on the 6TiSCH Operation Sublayer (6top) draft > to include statistics. > > Regards, > > Diego > > 2016-03-04 8:21 GMT-03:00 Pascal Thubert (pthubert) <pthubert@cisco.com > <javascript:_e(%7B%7D,'cvml','pthubert@cisco.com');>>: > >> I’d support that, Diego >> >> >> >> If the visible operation of the device depends on it and that influences >> the interoperation, it is good to document a base way of doing things. >> >> >> >> Cheers, >> >> >> >> Pascal >> >> >> >> *From:* 6tisch [mailto:6tisch-bounces@ietf.org >> <javascript:_e(%7B%7D,'cvml','6tisch-bounces@ietf.org');>] *On Behalf Of >> *Prof. Diego Dujovne >> *Sent:* jeudi 3 mars 2016 20:26 >> *To:* 6tisch@ietf.org <javascript:_e(%7B%7D,'cvml','6tisch@ietf.org');> >> *Subject:* [6tisch] 6P and Sf0 issue: Statistics for SFs and Relocation >> >> >> >> Dear all, >> >> Given the requirements to build SFs exposed >> >> in the 6tisch sublayer draft, there is no specification >> >> on how to obtain the statistics and calculate and build >> the metrics used to decide when to add/delete/relocate >> >> cells. The draft asks only for the set of rules. >> >> SF0 defines an algorithm using specific values >> >> as thresholds and rules for adding/removing cells and >> uses PDR and a simple decision rule to decide which >> cell to relocate. However, this may not be the case >> for the other (possibly more complex) SFs, where >> metrics based on statistics could be included. >> >> Shall we include a section on the description >> >> of how to calculate the specific statistics used on each >> >> SF, or just leave this out of scope to the implementer? >> >> My point of view is that statistics should be specified >> >> in order to be able to interoperate between different >> >> implementations of the same SF. >> >> What do you think? >> >> Thank you, >> >> Diego Dujovne >> >> >> >> >> -- >> >> DIEGO DUJOVNE >> Académico Escuela de Ingeniería en Informática y Telecomunicaciones >> Facultad de Ingeniería UDP >> www.ingenieria.udp.cl >> (56 2) 676 8125 >> > > > > -- > DIEGO DUJOVNE > Académico Escuela de Ingeniería en Informática y Telecomunicaciones > Facultad de Ingeniería UDP > www.ingenieria.udp.cl > (56 2) 676 8125 > -- _______________________________________ Thomas Watteyne, PhD Research Scientist & Innovator, Inria Sr Networking Design Eng, Linear Tech Founder & co-lead, UC Berkeley OpenWSN Co-chair, IETF 6TiSCH www.thomaswatteyne.com _______________________________________
- [6tisch] 6P and Sf0 issue: Statistics for SFs and… Prof. Diego Dujovne
- Re: [6tisch] 6P and Sf0 issue: Statistics for SFs… Pascal Thubert (pthubert)
- Re: [6tisch] 6P and Sf0 issue: Statistics for SFs… Prof. Diego Dujovne
- Re: [6tisch] 6P and Sf0 issue: Statistics for SFs… Thomas Watteyne
- Re: [6tisch] 6P and Sf0 issue: Statistics for SFs… Xavier Vilajosana