The invention provides network switching equipment and a
data transmission method thereof. The network switching equipment comprises one or multiple optical modules, a
communication interface, a switching
chip, differential buses in various types, and a processor; the
communication interface receives data sent from the
network interface equipment and sends the data to the
optical module; the
optical module judges whether the
data type is matched with the differential
bus of the current transmission data; if the
data type is matched with the differential
bus of the current transmission data, the
optical module transmits the data to the switching
chip through the differential
bus of the current transmission bus; the switching
chip sends the data to the processor; if the
data type is mismatched with the differential bus, the optical module triggers the switching chip to switch the differential bus of the current transmission data; the switching chip receives a control instruction from theprocessor, and switches the differential bus of the current transmission data to the differential bus matched with the transmission data type according to the transmission data type in the control instruction, and sends the data from the optical module to the processor through the switched differential bus. The
network interface equipment in various types is satisfied, and the cost is saved.