Re: [6lowpan] WG adoption of draft-patil-6lowpan-v6over-btle-01.txt
Alexandru Petrescu <alexandru.petrescu@gmail.com> Sat, 02 April 2011 15:39 UTC
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Date: Sat, 02 Apr 2011 17:40:55 +0200
From: Alexandru Petrescu <alexandru.petrescu@gmail.com>
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Subject: Re: [6lowpan] WG adoption of draft-patil-6lowpan-v6over-btle-01.txt
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Thanks for clarification, Le 02/04/2011 17:05, Benjamin A. Rolfe a écrit : > To further clarify: 802.15.1 is the IEEE standard base standard for > Bluetooth. If you had said 802.15.1 is to Bluetooth SIG as 802.11 is > to WiFi Alliance you would be more correct. Ok, 802.15.1 is to Bluetooth SIG as 802.11 is to WiFi Alliance. > 802.15.4 was developed for very different applications and physical > environments than Bluetooth. They are completely different standards. > 802.14[5?].1 and 802.15.4 are significantly different MACs, and > 802.15.4 includes multiple PHY technologies. Ok. IMHO BT-LE and 802.15.4 compete in the same application and physical environment. > The latest revision (802.15.4-2011) includes the 3 PHY amendments > approved since 2006, bringing the total of distinct PHYs to 6, with > multiple banding options within some PHY specifications, all under a > single, common MAC. Ok, I wonder what that MAC is. > There are at least 5 current task groups working on or finishing up > further amendments. It has become the most popular downloaded > standard in the 802 family and has been applied to a large variety of > very different applications. Aha, 802.15.4-2011 is a popular download; but I cant find, sorry; by vote count here, it seems BT-LE is popular as well and I _can_ find the BT-LE specs. > Of course Bluetooth (802.15.1) has deployed in billions of devices > and continues to be included in nearly all consumer devices. It is > optimized for short physical range, small networks (piconets), low > energy consumption, and high density of simultaneously operating > piconets. Most implementations limit TX power and optimize for a > range of a couple meters or less. Do you mean that BT is more adapted in more constrained environments than 802.15.4? For the range in meters, I read at the 6LoWPAN WG meeting slides that BT-LE does 50-100meter. Do you know whether 802.15.4-2011 doc refers to the use of the lowpan adaptation layer (section 5 of rfc4944)? Or does it simply say IPv6 (like RFC2460 or so)? I can't find the 802.15.4-2011 document. Thanks, Alex > > Hope that clarification helps. > >> There is a world of difference between 802.15.4 and BT-LE. >> >> On 4/1/11 5:33 AM, "ext Alexandru >> Petrescu"<alexandru.petrescu@gmail.com> wrote: >> >>> Le 01/04/2011 12:12, Carsten Bormann a écrit : >>>>> It seems to me IMHO bt-le is just a new phy, but same mac, >>>>> hence ip would not be affected. >>>> From the presentation, I had a different impression. >>>> >>>>> But of course, a document stating we do things over bt-le as >>>>> usually as over bt, would not hurt. >>>> Actually, it is required, as RFC4944 and its updates only >>>> define 6LoWPAN for IEEE 802.15.4. If two people took these >>>> documents and tried to apply them to BT-LE, they wouldn't >>>> necessarily arrive at interoperable specifications. >>> To me IMHO bluetooth is to 802.15.4 what wifi is to 802.11 - a >>> marketing name. It seems sufficient to specify ipv6 over 802.15.4 >>> and that would cover all variants of bluetooth. There is no >>> ipv6-over-802.11n, nor ipv6-over-wifilowpower, for example. >>> >>> I may be wrong though about bluetooth being mostly 802.15.4 >>> rfc4944 and rfc2460. >>> >>>>> Is the WG re-opened? >>>> No, it is alive and well until such a time when it is actually >>>> being closed. All that was said is that the Prague meeting >>>> will be the last physical meeting of the WG. We want to close >>>> our unfinished business, and a number of documents are based on >>>> discussions that went on at least since Beijing, so if they >>>> fit our charter and we have energy to work on them, there is no >>>> problem doing that. >>> sounds like doing new work without physical meetings... ok... >>> >>> Alex >>> >>>> Gruesse, Carsten >>>> >>> _______________________________________________ 6lowpan mailing >>> list 6lowpan@ietf.org >>> https://www.ietf.org/mailman/listinfo/6lowpan >> _______________________________________________ 6lowpan mailing >> list 6lowpan@ietf.org >> https://www.ietf.org/mailman/listinfo/6lowpan >> > > _______________________________________________ 6lowpan mailing list > 6lowpan@ietf.org https://www.ietf.org/mailman/listinfo/6lowpan >
- [6lowpan] WG adoption of 6lowpan Implementers gui… Geoff Mulligan
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Ralph Droms
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Stok, Peter van der
- [6lowpan] WG adoption of 6lowpan Implementers gui… Carsten Bormann
- Re: [6lowpan] WG adoption of Transmission of IPv6… Carsten Bormann
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Carles Gomez Montenegro
- Re: [6lowpan] WG adoption of Transmission of IPv6… Samita Chakrabarti
- Re: [6lowpan] WG adoption of Transmission of IPv6… Yoshihiro Ohba
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carles Gomez Montenegro
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… johanna.1.nieminen
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Basavaraj.Patil
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Basavaraj.Patil
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Robert Cragie
- Re: [6lowpan] WG adoption of Transmission of IPv6… Zach Shelby
- Re: [6lowpan] WG adoption of Transmission of IPv6… Basavaraj.Patil
- Re: [6lowpan] WG adoption of Transmission of IPv6… Behcet Sarikaya
- Re: [6lowpan] WG adoption of Transmission of IPv6… Pascal Thubert (pthubert)
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Oliver Hahm
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of Transmission of IPv6… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carles Gomez Montenegro
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carles Gomez Montenegro
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Benjamin A. Rolfe
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Alexandru Petrescu
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Dijk, Esko
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Benjamin A. Rolfe
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Benjamin A. Rolfe
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… johanna.1.nieminen
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Colin O'Flynn
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Colin O'Flynn
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Zach Shelby
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… C Chauvenet
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Pascal Thubert (pthubert)
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Oliver Hahm
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… C Chauvenet
- Re: [6lowpan] WG adoption of 6lowpan Implementers… Luis Carlos Maqueda Ara
- [6lowpan] ADOPTED: Re: WG adoption of Transmissio… Carsten Bormann
- Re: [6lowpan] WG adoption of draft-patil-6lowpan-… Peter Mariager