Patent ID: 8279762
Filing Date: 2012-10-02
Classification: H04J,H04L

Abstract:
1. An interface switching device including a first network interface comprising a first type of network interface, and a second network interface comprising a second type of network interface different from the first type of network interface, each network interface connected to a corresponding link of a redundant system, the interface switching device comprising: an automatic switch information transformer for transforming automatic switch information between a predetermined type used for a predetermined network interface and each of other types used for network interfaces other than the predetermined network interface; a switch controller for inputting automatic switch information of the predetermined type and event information to perform switch control of the first and second network interfaces; and a control interface section for: (a) connecting the first network interface to the switch controller via the automatic switch information transformer when first automatic switch information received from the first network interface is not of the predetermined type, so that the automatic switch information transformer transforms the first automatic switch information into the predetermined type, and (b) connecting the first network interface directly to the switch controller when the first automatic switch information is of the predetermined type; and an interface switch section coupled to the first and second network interfaces, wherein the interface switch section is configured to: (a) select the first network interface as a working line and the second network interface as a protection line, and (b) under the switch control of the switch controller, switch the selection of the working line from the first network interface to the second network interface, wherein the first and second network interfaces of the redundant system includes a digital synchronous network interface and an Ethernet interface.