Application Note: Nemeus Multicast Overview - Revision history

Lcs at 16:07, 18 February 2019

2019-02-18T16:07:16Z

← Older revision		Revision as of 16:07, 18 February 2019
Line 48:		Line 48:
	Device #3		Device #3
	AT+MAC=SMC,789ABCDC,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDC,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00


			<pre style="color: red">Please Note that to behave correctly, the device must have sent at least one payload to the gateway </pre>

	== Gateway configuration ==		== Gateway configuration ==

Lcs: /* Example with two devices with multicast on 4 groups */

2019-02-18T15:27:56Z

Example with two devices with multicast on 4 groups

← Older revision		Revision as of 15:27, 18 February 2019
Line 30:		Line 30:
	= Example with two devices with multicast on 4 groups =		= Example with two devices with multicast on 4 groups =

	Multicast Adress : ~~FFFFFFFF789ABCDA~~ (4 groups)<br>		Multicast Adress : FFFFFFFF789ABCDC (4 groups)<br>
	nwk_skey : 0102030405060708090A0B0C0D0E0FCA<br>		nwk_skey : 0102030405060708090A0B0C0D0E0FCA<br>
	apps_key : 0102030405060708090A0B0C0D0E0F00<br>		apps_key : 0102030405060708090A0B0C0D0E0F00<br>
Line 41:		Line 41:

	Device #1		Device #1
	AT+MAC=SMC,~~789ABCDA~~,FFFFFFFC,00000001,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDC,FFFFFFFC,00000001,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

	Device #2		Device #2
	AT+MAC=SMC,~~789ABCDA~~,FFFFFFFC,00000008,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDC,FFFFFFFC,00000008,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

	Device #3		Device #3
	AT+MAC=SMC,~~789ABCDA~~,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDC,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

	== Gateway configuration ==		== Gateway configuration ==

Lcs: /* Devices configuration */

2018-11-27T17:48:28Z

Devices configuration

← Older revision		Revision as of 17:48, 27 November 2018
Line 46:		Line 46:
	AT+MAC=SMC,789ABCDA,FFFFFFFC,00000008,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDA,FFFFFFFC,00000008,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

	Device #3		Device #3
	AT+MAC=SMC,789ABCDA,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDA,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

Lcs: /* Example with two devices with multicast on 4 groups */

2018-11-27T17:48:04Z

Example with two devices with multicast on 4 groups

← Older revision		Revision as of 17:48, 27 November 2018
Line 30:		Line 30:
	= Example with two devices with multicast on 4 groups =		= Example with two devices with multicast on 4 groups =

	Multicast Adress : FFFFFFFF789ABCDA (4 groups)		Multicast Adress : FFFFFFFF789ABCDA (4 groups)<br>
	nwk_skey : 0102030405060708090A0B0C0D0E0FCA		nwk_skey : 0102030405060708090A0B0C0D0E0FCA<br>
	apps_key : 0102030405060708090A0B0C0D0E0F00		apps_key : 0102030405060708090A0B0C0D0E0F00<br>
	Device 1 in group 1		Device 1 in group 0 (bit 0 set in the mask => 0x1))<br>
	Device 2 in group 2		Device 2 in group 3 (bit 3 set in the mask => 0x8)<br>
			Device 3 in group 1 and 3 (bit 1 and bit 3 set in the mask => 0xA)<br>


Line 43:		Line 44:

	Device #2		Device #2
	AT+MAC=SMC,789ABCDA,FFFFFFFC,~~00000002~~,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00		AT+MAC=SMC,789ABCDA,FFFFFFFC,00000008,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

			Device #3
			AT+MAC=SMC,789ABCDA,FFFFFFFC,0000000A,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

	== Gateway configuration ==		== Gateway configuration ==
Line 63:		Line 67:

	[[File:Multicast device context.png\|Multicast Context]]		[[File:Multicast device context.png\|Multicast Context]]

			In this example only device # 3 will receive the data

Lcs: /* Gateway configuration */

2018-10-22T13:39:45Z

Gateway configuration

← Older revision		Revision as of 13:39, 22 October 2018
Line 47:		Line 47:
	== Gateway configuration ==		== Gateway configuration ==

	~~Diapo1~~		First we need to add a specific device that will represent the multicast channel:
			<br /><br />

			[[File:Multicast add device.png \| Multicast add device]]

	~~Diapo2~~		<br /><br />
			We can see now in devices list our 'devices' along with the multicast virtual device:
			<br /><br />

			[[File:Multicast devices list.png \|Multicast devices list]]

	~~Diapo3~~		<br /><br />
			We can send the data via the virtual device context:
			<br /><br />

			[[File:Multicast device context.png\|Multicast Context]]
	...

Lcs: Created page with "Category:MM002 Category:Modules Category:Gateways Category:Application Notes Purpose of this Application Note is to help engineer to integrate Nemeus Multicas..."

2018-10-22T12:36:58Z

Created page with "Category:MM002 Category:Modules Category:Gateways Category:Application Notes Purpose of this Application Note is to help engineer to integrate Nemeus Multicas..."

New page

[[Category:MM002]]
[[Category:Modules]]
[[Category:Gateways]]
[[Category:Application Notes]]

Purpose of this Application Note is to help engineer to integrate Nemeus Multicast Mechanism. This Application Note is valid for all MM002-xx-EU [[:Category:Modules |Modules]] and MG003 [[:Category:Gateways |Gateways]] from 18W41.
<br />

= LoRaWan Multicast =

When a device network contain devices that should get same information from server it could be useful to perform multicast, that is sending same payload to several devices in one shot. Of course, all device should listen, so multicast should be done whit class C devices.

= Nemeus Implementation =

Nemeus Multicast adress can be defined with following formalism:
0xFFFFFFFFxxxxxxxx

For the device configuration only the 4 LSB are used

The five less significant bits could be used to manage up to 32 groups and should be set/unset as follow:
* 1 1111 : 1 group available
* 1 1110 : 2 groups available
* 1 1100 : 4 groups available
* 1 1000 : 8 groups available
* 1 0000 : 16 groups available
* 0 0000 : 32 groups available

= Example with two devices with multicast on 4 groups =

Multicast Adress : FFFFFFFF789ABCDA (4 groups)
nwk_skey : 0102030405060708090A0B0C0D0E0FCA
apps_key : 0102030405060708090A0B0C0D0E0F00
Device 1 in group 1
Device 2 in group 2

== Devices configuration ==

Device #1
AT+MAC=SMC,789ABCDA,FFFFFFFC,00000001,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

Device #2
AT+MAC=SMC,789ABCDA,FFFFFFFC,00000002,0,0102030405060708090A0B0C0D0E0FCA,0102030405060708090A0B0C0D0E0F00

== Gateway configuration ==

Diapo1

Diapo2

Diapo3

...