secure beacon of LPN

[jowei]

Hi Nordic:

It seems that mesh LPN can receive secure beacon via friend node, and if has no friend, LPN also can receive secure beacon if MESH_FEATURE_LPN_ACT_AS_REGULAR_NODE_OUT_OF_FRIENDSHIP is set to 1, so LPN can do iv update if other nodes iv increases.

Does LPN transmit secure beacon also? it seems that LPN will not transmit secure beacon in the network_enable() of network.c

If LPN does not transmit secure beacon, what happen if LPN has larger iv, but other nodes with smaller iv?

Regards,

Joseph

[tesc]

Hi,

Low Power Nodes do not transmit secure network beacons. If they start running out of sequence numbers, it should be detected by the nodes they are communicating with, and those nodes should start the IV update procedure. Since LPNs are communicating less frequently compared to other nodes, chances of an LPN running out of sequence numbers before all non-LPN nodes is extremely low.

Regards,
Terje