| 摘要 |
PROBLEM TO BE SOLVED: To provide a relay device and the like capable of shortening transmission delay in a network capable of communication with different speed together. ! SOLUTION: A communication device includes: cut-through availability determination means that compares transmission speed at an input port with transmission speed at an output port in a prescribed period, and if as a result of the speed comparison, the transmission speed at the input port is nearly equal to the transmission speed at the output port, transmits a cut-through notice indicating that cut-through is available to a prescribed device; transmission scheme switching means that switches a transmission scheme according to information to designate transmission by cut-through on the basis of the cut-through notice included in a frame received from the input port; and cut-through processing means that transmits the received frame to the output port by the cut-through scheme if the transmission scheme switching means has switched to th |
