Network apparatus

An apparatus comprising:

• a plurality of input units;
• a plurality of output units;
• a switching unit adding, to data input from the input unit, output destination information indicating the output unit connected to the apparatus to which the data is to be output, and outputting the data having the output destination information to the output unit connected to the apparatus to which the data is to be output, or to another output unit in the same group as that of the output unit;
• and
• an output control unit, wherein
• output units included in the same group among the plurality of output units each have:
• a first output data processing portion performing first output data processing on data input from the switching unit, and outputting the data after the first output data processing;
• a buffer connected to the output of the first output data processing portion and storing data input from the first output data processing portion;
• a multiplexer connected to an output from the buffer and an output from a buffer in another output unit in the same group, and outputting data indicating that an output unit specified by output destination information is the multiplexer's own output unit;
• and
• a second output data processing portion connected to the output of the multiplexer and performing second output data processing on data input from the multiplexer and transmitting the data after the second output data processing to the destination apparatus of the data;
• wherein
• the output control unit controls the supply of power or the supply of the clock signal to the first output data processing portion and the buffer.