Interface controller, communication method and system, storage medium and program product

The invention discloses an interface controller, a communication method, a communication system, a storage medium and a program product in the technical field of computers, the interface controller comprises an interface component, a conversion component and a link component, the interface component is connected with an application in a local host, the link component is connected with an external physical transmission medium, and the conversion component is connected with the external physical transmission medium. The conversion component is connected with the interface component and the link component; the interface controller can transmit and receive data. The interface controller has the technical effects that the interface controller adopts a modular design, each module is responsible for different functions, each module independently processes data, and the data is processed by an upper layer or a lower layer after being processed, so that the coupling among different layers is reduced, the system is eas