CPC H04W 52/383 (2013.01) [H04W 24/02 (2013.01); H04W 40/244 (2013.01); H04W 84/18 (2013.01)] | 20 Claims |
1. A method comprising:
attaching, by a network device in a data network, as a child network device to a parent network device of a directed acyclic graph (DAG) rooted by a root network device;
detecting, by the network device, a plurality of wireless link quality values for messages received from respective wireless network devices confined within an isolated area of the data network, the network device positioned outside the isolated area;
identifying, by the network device, one of the wireless network devices within the isolated area as having a best of the wireless link quality values and associated with a prescribed sub-network identifier, the sub-network identifier allocated to the network device operable as an edge node between the DAG and the isolated area; and
transmitting, by the network device, an instruction to the one wireless network device within the isolated area to operate as a forwarding device between the network device and the wireless network devices within the isolated area.
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