Patent ID: 7920573
Filing Date: 2011-04-05
Classification: H04L

Abstract:
1. A network data relay device comprising: a receiver that receives data from the network containing a destination address indicating a destination of the data and a priority value indicating priority of the data; a first transmission port that includes a plurality of first transmission queues each assigned different priority values and a first controller to allocate the data to one of the first transmission queues corresponding to the priority value of the data; a second transmission port that forms a logical port in conjunction with the first transmission port, and includes a plurality of second transmission queues each assigned different priority values and a second controller to allocate the data to one of the second transmission queues corresponding to the priority value of the data, any of the priority values assigned to the second transmission queues being different from all of the priority values assigned to the first transmission queues; a switch that outputs the data received to the first transmission port or the second transmission port according to the destination address and the priority value of the data; and a transmission controller that controls transmission of the data stored in the first transmission queues and the second transmission queues according to the priority values assigned to the first transmission queues and the second transmission queues.