| 摘要 |
PROBLEM TO BE SOLVED: To perform transmission/reception of a flow exceeding a band in a physical link.SOLUTION: A second communication device includes a first port for use for communication with a terminal and a plurality of second ports for use for communication with a first communication device. The second communication device receives from the terminal a transfer frame which is a frame to be transferred to the communication destination of the first terminal through the first communication device. The second communication device calculates an identification number to identify a port to be used to output the transfer frame, using a cyclic number representing a transfer frame sequence, on the basis of the transmission source address of the transfer frame, the destination address and the combination of the transmission source address and the destination address. The second communication device outputs the transfer frame from the port, identified by the identification number, among the plurality of second ports. The second communication device transfers the transfer frame to the first communication device, through a port identified by the identification number among ports in the first communication device. |
