Service protecting switching method, system and device in a...

Details Service protecting switching method, system and device in a... Service protecting switching method, system and device in a...

2008-12-05

2010-12-07

Yao, Kwang B (Department: 2473)

Multiplex communications

Fault recovery

Reexamination Certificate

active

07848225

ABSTRACT:
A method for service protection switching in a connectionless network is provided. The method includes detecting if there is any failure which may have occurred on the respective path in the working flow domain and protection flow domain, coupled between the protection switching point and each of the at least two remote protection switching points. If any failure occurs on a path in one of the working flow domain and the protection flow domain, the service delivered via the failure-occurred path is switched to a path in the other flow domain for further delivery, where the path in the other flow domain is coupled to the remote protection switching point which is located on the failure-occurred path. A system and a device for service protection switching in a connectionless network are further provided such that the protection switching can be done on a path-by-path basis. Accordingly, the flooding problem caused by the protection switching is avoided effectively.

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