COMMUNICATIONS DEVICE, COMMUNICATIONS SYSTEM AND COMMUNICATIONS METHOD

摘要

A node (1-1) functions as an inter-ring connection node that connects to an inter-ring connection link in a communications system comprising multiple inter-ring connection links that connect between adjacent ring networks, and comprises: a flow information pass determining unit (201) that determines the inter-ring connection link through which a frame stored in a reception frame passes from among a plurality of inter-ring connection links, on the basis of flow information for identifying the flow with which the frame is associated; and a forwarding destination port determining unit (202) that determines that the forwarding destination shall be the inter-ring connection link that connects to a local node when an address of a reception frame is within the adjacent ring network, where the inter-ring connection link determined by the flow information pass determining unit (201) is the inter-ring connection link that connects to the local node.