Controlling tree topology over mesh topology based on autonomous decentralized control

A node which constitutes a mesh topology, the node comprising:

• a wireless interface that supports a connection by a wireless link;
• a wired interface that supports a connection by a wired link;
• a controller that controls a link selection of the wireless link or the wired link which forms a tree topology over the mesh topology, based on a status of communication by at least one of the wireless link and the wired link.

A method comprising:

• forming a mesh topology by a plurality of nodes including a node which supports a connection by a wireless link and a node which supports connections by a wireless link and a wired link;
• and
• forming a tree topology over the mesh topology by a link selection of the wireless link or the wired link based on an autonomous decentralized control in the individual nodes.