Method and system for implementing automatic protection switching for transmission equipment

摘要

A method for realizing an automatic protection switching of a transmission device is provided, and the method includes that: according to a received automatic protection switching trigger condition and information of each line sub-card, which are transmitted by a cross sub-card via a Time Division Multiplexing Fabric to Framer Interface (TFI5) frame, a control sub-card determines to execute protection switching, and sends a protection switching command to the cross sub-card; and the cross sub-card completes the protection switching action. A system for realizing an automatic protection switching of a transmission device is also provided. According to the technical solution of the present invention, the automatic protection switching of the transmission device in an Optical Transport Network (OTN) is achieved conveniently.

主权项

1. A method for implementing automatic protection switching for transmission equipment, comprising:
a control sub-card determining to execute protection switching according to a received automatic protection switching trigger condition and received information of each line sub-card which are transferred by a cross sub-card via Time Division Multiplexing Fabric to Framer Interface (TFI5) frames, and sending a protection switching command to the cross sub-card; and the cross sub-card completing the protection switching action; wherein before determining to execute protection switching, the method further comprises: reporting the information of each line sub-card to the control sub-card; and before reporting the information of each line sub-card to the control sub-card, the method further comprises: a user setting the automatic protection switching trigger condition in each line sub-card according to the state of a signal received at a line side and the configuration of an Optical Transport Network (OTN); wherein setting the automatic protection switching trigger condition comprises: setting the automatic protection switching trigger condition by means of writing a program via a software interface according to a fiber interface alarm or an Optical Data Unit k (ODUk) service alarm.