| 摘要 |
Embodiments of the present invention provide a method, a node device, and a system for shared protection in an optical transport network, and relate to the field of communications technologies. The method for shared protection in an optical transport network includes: obtaining, by a first node device, fault information, where the first node device is a node device that detects fault occurrence; determining, by the first node device, whether the fault information is a switching condition of a preset high order ODUk1 group; if yes, obtaining first information according to the fault information, and sending the first information to other node devices on a high order ODUk shared protection ring, to the other node devices to implement group switching of interrupted service according to the first information; if not, obtaining, by the first node device, second information according to the fault information, and sending the second information to the other node devices, so that the other node devices implement individual switching of interrupted service according to the second information. The present invention accelerates the speed of service switching. |
