On-demand table and route update after a node failure in a wireless network

A Bluetooth Low Energy (BLE) network (300) comprising multiple nodes comprising:

• a first node (N2);
• a second node (N1);
• and
• one or more one-hop neighbouring nodes (N1, N3, N6), wherein the one-hop neighbouring nodes are a one-hop distance from the first node;
• wherein the first node is configured to detect that the second node is a failed node (N1), record that the second node is a failed node and that a first path is unavailable, switch to a second path, the second path comprising a third node, check a hop count of the third node, wherein the third node is a next hop on the second path from the first node, generate an information packet, wherein the information packet comprises a unique ID of the failed node and a hop count of the first node, and broadcast the information packet to one or more of the one-hop neighbouring nodes;
• and
• wherein each of the one-hop neighbouring nodes (N1, N3, N6) that receives the information packet is configured to store the unique ID of the failed node and the hop count of the first node, and recalculate a new hop count, wherein, if the new hop count at one of the one-hop neighbouring nodes is different from a hop count of the one-hop neighbouring node prior to receiving the information packet, the one-hop neighbouring node generates a second information packet comprising the new hop count of the one-hop neighbouring node and broadcasts the second information packet to one or more of its own one-hop neighbouring nodes.