SERVICE TRANSMISSION PROTECTION METHOD AND DEVICE BASED ON INTERSECTING RING OF MULTI-RING STRUCTURE NETWORK

摘要

Disclosed is a service transmission protection method based on an intersecting ring of a multi-ring structure network. The method comprises: when a service is transmitted to an interconnection node via a working channel or a protection channel of a ring-in ring network, if it is judged that the service can reach a ring-out node of the service from the interconnection node according to the topology state information about an intersecting ring, spanning the ring according to the information about the ring-out node at the interconnection node, the interconnection node sharing the information about the ring-out node of the service in advance, the ring network in which the ring-in node is located and the ring network in which the ring-out node is located sharing the topology state information about the intersecting ring in advance; and transmitting the service to the ring-out node via the working channel or the protection channel of the ring-out ring network. Also disclosed is a service transmission protection device based on an intersecting ring of a multi-ring structure network. The embodiments of the present application can avoid that the service transmission protection is achieved in a manner of associating the whole ring network via upper and lower ring paths, and reduce the complexity of ring spanning protection of intersecting rings.