Patent ID: 8755384

Claim:
A network apparatus, comprising: n 2 first signal forwarding units that are connected in one-to-one correspondence to n 2 combinations of signal transmitting/receiving devices which are generated by classifying n 3 signal transmitting/receiving devices having n 3 addresses of serial numbers into groups having n sequential addresses from the minimum address, receive n signals, which are different in terms of the remainder of a destination address divided by n, from the signal transmitting/receiving device which belongs to corresponding combination, and transmit the received signals to n different destinations, n 2 second signal forwarding units that receive n signals, which are equal in terms of the remainder of a destination address divided by n, from the different first signal forwarding units and transmit the received signals to a destination corresponding to the remainder of a destination address of each of the received signals divided by n 2 ; n 2 third signal forwarding units that have a Fat Tree configuration with respect to each of the second signal forwarding unit, receive n signals, which are equal in terms of the remainder of a destination address divided by n 2 , from n different second signal forwarding units, and output the received signal to the second signal forwarding unit connected to the first signal forwarding unit connected to the signal transmitting/receiving device having a destination address of the received signal; and a bottom connection path disposed between the first signal forwarding units and the second signal forwarding units constituting the Fat Tree together with the third signal forwarding units and configured to interchange a connection point of one or more second signal forwarding units and a connection point of another one or more second signal forwarding units in a Fat Tree configuration between the first signal forwarding units and the second signal forwarding units.