Patent ID: 8095721
Filing Date: 2012-01-10
Classification: G06F

Abstract:
1. A network switch comprising: a plurality of crossbar switches that transfer unit data in a specified format; a receiving side transfer unit that transfers data received from a network to the plurality of crossbar switches in the unit data basis; and a plurality of transmitting side transfer units that transmit data transferred from the plurality of crossbar switches to the network, wherein the receiving side transfer unit has: a serial number setting unit that sets a consecutive serial number to the unit data in transfer sequence to the crossbar switches regardless of whether transfer destination of the data unit with the crossbar switch is same or not and further whether transfer destination of the data unit with the crossbar switch is single or a plurality, and a distributing unit that distributes the unit data to the plurality of crossbar switches, the unit data to be distributed being set the serial number, each of the plurality of transmitting side transfer units has: a plurality of queues that individually stores the unit data transferred from each crossbar switch for the respective crossbar switches, wherein the number of queues is equal to the number of crossbar switches, and a unit data extraction unit that extracts the unit data with smallest serial number of the unit data stored at beginning of the plurality of queues when all of the plurality of queues store the unit data.