Patent ID: 7227861

Claim:
A packet switch device switching input packets destined for a plurality of destinations, which packets are scheduled, comprising: a distributing unit for sequentially distributing the input packets to a plurality of paths in an arrival order, independent of destination, in units of packets; a switch unit for switching the packets input from said distributing unit via the plurality of paths without buffers for avoiding packet confliction to the same destination, and outputting the packets in an arrival order; and a multiplexing unit for multiplexing the packets output from said switch unit by performing a process inverse to the packet distribution process performed by said distributing unit, wherein switching of input packets is performed by a distribution means constituted from one or more of said distribution unit for distributing packets received at input ports in the arrival order of the packets, irrespective of destinations, to paths sequentially, a switching means constituted from one or more of said switch unit for switching the packets to the plurality of destinations of the packets, and a multiplexing means constituted from one or more of said multiplexing unit for multiplexing the packets according to their destinations for outputting multiplexed packets to output ports.