One upper level protocol of fibre channel (FC) should be properly adopted for FC physical network testing. Internet protocol (IP) over FC is one important upper level protocol of FC and is very mature. Based on IP over FC, one new lightweight internet protocol ( LIP) over FC was proposed. Transmission mode and data format of LIP over FC was defined. Based on device driver program of IP over FC, the communication of LIP over FC was implemented by embedding intermediate driver in Microsoft 2000 operating system. FC analysis instrument can be used to take stock of the implement result. Data format of result is accord with design. Using LIP over FC, the communication efficiency of short messages can be enormously improved. Transmission mode of LIP over FC is very simple and flexible, identifier of FC nodes is easy to achieved. So LIP over FC is adapt to test physical network capability of FC.