| 摘要 |
A method for implementing permanent ring network protection in an MESH network, the method includes the following steps: a node in a ring network protection group informing, when detecting a certain span fails, other nodes in the ring network protection group of the failure information (11); each node in the ring network protection group switching a service that is affected by the failure to a protection path thereof for transmission (12); searching for a substitute path for the failed span in idle resources of the MESH network (13); establishing a new ring network protection group by using the substitute path and sections that are not affected by the failure in the ring network protection group (14); and switching the service that is affected by the failure from being transmitted via the protection path to being transmitted via the substitute path (15). The present invention is capable of providing the permanent ring network protection function for all the services on the ring network. |
