METHOD, DEVICE AND SYSTEM FOR REDUCING CENTRALIZED PROTECTION SWITCHING TIME IN POTN SYSTEM

Provided are a method, device and system for reducing centralized protection switching time in a POTN system, and the method includes: obtaining a reported soft pseudo wire HW alarm message; parsing the soft pseudo wire HW alarm message, determining at least one protection switching decision according to the parsing result of the soft pseudo-wire HW alarm message, and encapsulating the at least one protection switching decision into a soft pseudo wire HW decision message and sending the message. In the technical solution, simulated soft pseudo wire HW technology is adopted to encapsulate alarm and protection switching commands, related message formats are formulated, and thus protection channels can switch quickly, reliably and efficiently when a system performs the protection switching, thereby significantly reducing the centralized protection switching time.