RELAY DEVICE, METHOD FOR CONTROLLING RELAY DEVICE, AND COMPUTER PROGRAM

摘要

To transmit traffic flows on which different types of quality requirements are imposed through an NoC (network on chip) while ensuring their quality, the present disclosure provides a router which does not need dedicated buffers to store those traffic flows on a quality requirement basis. In a bus system including a bus master, a first bus, and a second bus to connect them together, this router is arranged on the second bus to relay packets. The bus master outputs packets including information about at least one of (N + 1) predetermined types of quality requirements. The second bus transmits packets designating at most N types of quality requirements. The router controls sending of the packets, with respect to at most N types of buffers that classify and store the packets by reference to the quality requirement type information and the packets stored in the buffers, so that the packets are sent in the descending order of their level of the quality requirement. The router controls sending schedule of the traffic flows by sensing a difference between the (N + 1) different types of quality requirements.