Hi, I jump in :) We discussed this. We said to use NORMAL in order to support any type of packet in the minimal cell/s and not only EBs. From our discussions, I think that we all understood (at least is what I captured in the minimal text) that if the type is NORMAL we can also send EBs there and hence we discarded ADVERTISEMENT type.
A clarification of these will be really valuable now that I will proceed with the revision of minimal. regards, X 2016-11-20 18:30 GMT+01:00 Thomas Watteyne <[email protected]>: > Yatch, > > Good point, indeed. The cell draft-minimal uses is indeed used for two > things: EBs and other frames. The question can we reformulate as "if we set > it to ADVERTISING, are we allowed to send non-EB frames on it" and "if we > set it to NORMAL, are we allowed to send EB frames on it". > > From the excerpts you cite, it looks like ADVERTISING makes more sense. Of > course, we are heavily in IEEE territory with this question, so we, as > 6TiSCH, cannot really answer. @Pat, could you circulate this point in the > IEEE 6T IG so we can get an official recommendation on the matter from the > IEEE. > > If the decision is to set the cell to "ADVERTISING", I will add an issue > and ask the authors of draft-minimal to make the change. > > Thomas > > On Fri, Nov 18, 2016 at 12:59 AM, Yasuyuki Tanaka < > [email protected]> wrote: > >> Thank you for your comment, Pat! >> >> I noticed your message wasn't on the ML; I paste it here. >> >> On 2016/11/17 16:40, [email protected] wrote: >> >>> >>> Yasuyuki brings up a very good point. A major effort in creating >>> 802.15.4-2015 was to eliminate (at least try to) ambiguities. As >>> per the IEEE style guide: "The word may is used to indicate a course >>> of action permissible within the limits of the standard (may equals >>> is permitted to ).” The LinkType wording was modified to clarify >>> when to use normal and when to use advertisement. As per Yasuyuki >>> Table 8-46 does state that "Set to ADVERTISING if the link is to be >>> used to advertise the network, otherwise set to NORMAL.” I should >>> note that the text in that sub-clause adds " If LinkType is set to >>> ADVERTISE, the links may be used to send Enhanced Beacon frames as >>> the result of the MAC receiving a MLME-BEACON.request.” The intent >>> of 802.15.4-2015 was not meant to change the meaning of LinkType, >>> rather it was meant to clarify. >>> >>> So, Yasuyuki’s question is indeed valid, should the minimal >>> configuration set the LinkType set to Advertising? >>> >>> Pat >>> >>> Pat Kinney >>> Kinney Consulting LLC >>> IEEE 802.15 WG vice chair, SC chair >>> ISA100 co-chair, ISA100.20 chair >>> O: +1.847.960.3715 >>> [email protected] >>> >> >> _______________________________________________ >> 6tisch mailing list >> [email protected] >> https://www.ietf.org/mailman/listinfo/6tisch >> > > > > -- > _______________________________________ > > 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 mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/6tisch > > -- Dr. Xavier Vilajosana Guillén Research Professor Wireless Networks Research Group Internet Interdisciplinary Institute (IN3) Universitat Oberta de Catalunya +34 646 633 681| [email protected] | Skype: xvilajosana http://xvilajosana.org http://wine.rdi.uoc.edu/ Parc Mediterrani de la Tecnologia Av. Carl Friedrich Gauss, 5. Edifici B3 08860 Castelldefels (Barcelona)
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