Relay device, connection management method, and information communication system

摘要

A relay device includes a detection unit that detects a change in a first communication state between a local device and a first relay device that is arranged in a stage preceding or succeeding the local device and connected to the local device with a logical path, a communication state obtaining unit that obtains, from a second relay device for relaying a different logical path, a second communication state between the second relay device and a third relay device that is arranged in a stage preceding or succeeding the second relay device and connected to the second relay device with a logical path, and a path connection unit that enables a logical path between the local device and the second relay device according to a combination of the first and the second communication states when the detection unit detects the change in the first communication state.