Method of setting bidirectional path, and communication system and node device for providing the same

摘要

Disclosed is a method of setting a bidirectional path between a first node and a second node in a network. A first path from the first node to the second node is established by a first path establishing procedure in which a first path message including a record of a route through which the first path message is forwarded from the first node to the second node. A second path from the second node to the first node along the route of the first path in the backward direction is established by a second path establishing procedure in which a second path message including a route specification determined based on the record of the route included in the first path message is transferred from the second node to the first node.