SERVICE PATH PROTECTION METHOD, CONTROLLER, DEVICE AND SYSTEM

摘要

Embodiments of the present invention provide a service path protection method, a controller, a device and a system. The method includes: receiving, by an end node of a protection path, a path selection instruction sent by an SDN controller, wherein the path selection instruction comprises a service path and protection path activation type, forwarding relationships respectively of a service path and the protection path in the end node; activating at least one forwarding relationship according to the service path and protection path activation type; and when a fault occurs in the service path, updating the at least one forwarding relationship according to the service path and protection path activation type. The embodiments of the present invention relate to the field of communications technologies and resolve a problem that in an SDN technology, when a fault occurs in a service path, a protection path cannot be used.

主权项

1. A device applied to an end node of a protection path, the device comprising:
a processor; a computer readable medium having a plurality of computer executable instructions that, when executed by the processor, cause the processor to perform the following:
receiving, by an end node of a protection path, a path selection instruction sent by a software defined networking (SDN) controller, wherein the path selection instruction comprises a service path and protection path activation type, a forwarding relationship of a service path in the end node, and a forwarding relationship of the protection path in the end node,activating, by the end node of the protection path, at least one forwarding relationship of the forwarding relationship of the service path in the end node and the forwarding relationship of the protection path in the end node according to the service path and protection path activation type, andupdating, by the end node of the protection path, the at least one forwarding relationship of the forwarding relationship of the service path in the end node and the forwarding relationship of the protection path in the end node according to the service path and protection path activation type when it is determined that a fault occurs in the service path; and wherein the protection path is a standby path for protecting a path between specified nodes on the service path.