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KB3001
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Re: RF + JTAG?
KB3001   10/31/2013 6:24:01 PM
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One tenth!

krisi
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Re: RF + JTAG?
krisi   10/31/2013 6:09:28 PM
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Thank you guys, I finally get it....6LoWPAN sounds fancy but it really is IPv6, just re-packaged for wireless area networks...kind back to my point of IPv6 being sufficient for IoT ;-)...Kris
 


chanj0
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Re: RF + JTAG?
chanj0   10/31/2013 6:08:14 PM
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For sensor to send packet to the "gateway", 6LoWPAN, i.e. iP over IEEE802.15.4, makes sense. It saves time on building interconnected infrastructure. Once the packet reaches gateway, the packet will then be decompressed. Ultimatedly, an uncompressed IP packet will be sent to the cloud in whatever mechanism that is defined. For delay tolerant application, I highly suspect the transport layer will stay with TCP. Higher layer can be REST API or SOAP.

Bert22306
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Re: RF + JTAG?
Bert22306   10/31/2013 5:30:47 PM
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Krisi, this is IPv6 over IEEE 802.15.4, instead of over Ethernet. Read all about it.

http://datatracker.ietf.org/doc/rfc6775/?include_text=1

So yes, the comment that IoT would use IP is almost a given. Else, it wouldn't have been called *I*oT.

docdivakar
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Re: Doubt
docdivakar   10/31/2013 5:20:57 PM
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Bert, I agree with you here with a caveat -perhaps Uncle Sam thinks that it can replicate the success it spawned with ARPANet project leading to the modern-day Internet. Such a premise in this context is largely misguided because IoT has progressed without any government initiatives.

IoT will proliferate because of necessity and not by the 'coolness' factor.

MP Divakar

LarryM99
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Re: RF + JTAG?
LarryM99   10/31/2013 5:14:38 PM
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The optimization is actually in the packet size. It is IPv6, but the addressing is shorthanded through the use of a local address table. I believe they also do message compression. The idea is to get the full networking capability of IPv6 without the larger messaging overhead.

krisi
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Re: RF + JTAG?
krisi   10/31/2013 4:49:16 PM
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thanx...how much smaller is it? TCP/IP packet is not that large

KB3001
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Re: RF + JTAG?
KB3001   10/31/2013 4:38:54 PM
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Low power, Krisi. It's lightweight by design: the header, packet size etc. are smaller. It was designed for low power i.e. IoT applications. It makes sense for battery-powered things.

KB3001
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Re: RF + JTAG?
KB3001   10/31/2013 4:35:36 PM
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There is COAP for that, Larry.

PS. Yes, 6LoWPAN is a cut-down version of TCP/IP.

krisi
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Re: RF + JTAG?
krisi   10/31/2013 4:30:13 PM
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Larry, what is the advantage in using 6LOWPAN over plain TCP/IP? I am having hard time understanding why we need a different protocol stack for IoT. TCP/IP is like English lanuage for international talk, sure you can speak some other dialect but why? Kris

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