Method for optimizing frequency of clock signal and network switch using same

A method for adjusting a frequency of a clock signal provided for operations of a network switch, said network switch comprising a clock signal generator for generating said clock signal, and a plurality of input/output ports for communicating with a plurality of network nodes, said method comprising steps of:

• detecting connection states of said input/output ports by counting said input/output ports currently connecting to said of network nodes;
• adjusting the frequency of said clock signal according to said connection states of said input/output ports with said plurality of network nodes;
• and
• repeating said detecting and adjusting steps at intervals of a predetermined period.

A network switch for conducting data transmission among network nodes, comprising:

• a first number of input/output ports for connecting to a variable number of network nodes, said variable number being equal to or less than said first number;
• a connection-state detector in communication with said first number of input/output ports, detecting connection states of said input/output ports by counting said variable number of network nodes, and asserting a control signal according to said connection states of said input/output ports;
• and
• a clock signal generator generating a clock signal having a frequency determined according to said control signal.