Dear Take Aanstoot. Thanks for your valuable comments.
See my response in line. Best regards. YongGeun. On Sat, Oct 8, 2016 at 6:20 PM, Take Aanstoot <[email protected]> wrote: > Dear People, > > Without the deep technical knowledge as you other people I want to give > some feedback from the field where we today are trapped in a nightmare of > standards, telco-standards and "standards". We work with wireless, plc and > rs485, knx, profibus, M-bus and what have you. > > This is my first post to an IETF mailinglist so please if someone wants to > guide me on the proper way to submit parts of this if it is not totally > bogus. > > The draft is a really nice oversight over 6lo in diverse use-cases, really > nice as a quick reference on where to continue. We (modio) will probably > make a flowchart thing based on this document and rfc6568 where you can put > in your use-case and based on that get to know what could be appropriate > 6lo-solutions instead of today's old standards and de facto standards. > > I am missing the following chapters, even though the standards are not > there yet I feel it should be mentioned so they will not be forgotten. > > 6loPLC, now primarily G3-PLC and Prime, needs a chapter in 3.foo and 6.foo > [YongGeun] I remember that there was an internet draft of IPv6 over PLC and a standardization activity in the 6lo WG. Yes, we can consider possible link layer technologies for 6lo and PLC could be a candidate. It will be great to help to add relevant contents. > LPWAN on low frequency (somewhere between 60-600 Mhz). > > People are testing nowadays in Europe on the following available > frequencies: > -2.4GHz, crowded, short range, crowded, worldwide, crowded, poor > penetration, crowded. > -868 MHz, getting crowded, only 20kHz, poor hardware support. > -433MHz (and in some countries other small bands between 398 - 465 MHz), > long range, reliable, few channels, frequency allocations are specific to > particular countries, 10kbit/s, still expensive modules. > 27 and 40MHz HF, cheap, simple, long range, crowded, low data rates, > crowded, large antennas needed > > For LPWAN to succeed we need more frequencies, both public ones and > private ones booked through your local radio frequency authority. This > should be named in the draft and also recommendations of what type of radio > to run on these frequencies. > It would be nice to state in this draft that in most part of the world > 174-230 MHz VHF is more or less empty or run a very deprecated radio > broadcasting standard which will probably be decommissioned during the next > few years and that it would be nice to reserve a big part of it for IoT > use, both public and bookable/buyable private channels. That would be the > difference between happy go lucky LPWAN on existing channels and a > worldwide break through for reliable serious applications LPWAN. > > [YongGeun] Personally, I agree your points. As you know, new lpwan working group will be made and lpwan working group is also related to this issues. So we need to discuss how to handle the issues. > > 5 Design space: > New bullet: > Update firmware requirements: Most 6 lo uses case will need a mechanism > for updating firmware. In these cases support for over the are updates are > required, probably in a broadcast mode when bandwith is low and the number > of identical devices is high. > > Security Requirements: (Actual text: Some 6lo use case can transfer some > important and personal data between 6lo nodes. In this case, high-level > security support is required.) > 6lo will be used for important data between nodes, eventually someone will > also know how to make today's not important data very important. High level > security support is required. > > [YongGeun] Great. We can add these design space in a next revision. > 6.4 use case of MS/TP > I can probably write something there if interest exists. > [YongGeun] Thanks for your help. > > 6.6 use case of LTE MTC > Mentions LTE MTC very briefly and then talks mostly about LoRa. Mayby > change topic. > [YongGeun] O.K. We will update this sections according to the current status. > > Are you still with me? > Regards, Take > > -- > Take Aanstoot > CEO > Modio AB > +254 70 646 2344 > +46 13 46 555 62 > [email protected] > >
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