METHOD, DEVICE AND SYSTEM FOR PROTECTING MULTI-PROTOCOL LABEL SWITCHING RING NETWORK

摘要

The aim of the embodiment of the present invention is to provide a method, device and system for protecting a multi-protocol label switching (MPLS) ring network, in order to solve the problems of complex configuration and high network resource overhead in the existing MPLS ring protection solutions. The system includes ingress -ring nodes, nodes on the ring network and egress-ring nodes. With the technical solution provided by the embodiment of the present invention, when the top label of a packet is a ring protection tunnel label and the outgoing interface for the packet does not perform the protection switching, the packet is forwarded according to the configuration information of the ring protection tunnel label rather than the configuration information of a service label, the same protection tunnel is provided for the packets with different service labels, and the problems of complex configuration and high network resource overhead in the existing MPLS ring protection solutions are solved.