Patent ID: 8154986

Claim:
A method for fast converging an end-to-end service, comprising: setting routing information and tunnel state information for each of at least two tunnels, by a double-ascription Provider Edge (PE) of a remote Customer Edge (CE) in the double-ascription PE itself which is connected with a nearby CE, before the nearby CE visits the remote CE, wherein, the double-ascription PE connected with the nearby CE serves as an initial node of each of the at least two tunnels, and at least two other PEs connected with the remote CE serve as terminal nodes of the at least two tunnels, respectively, and wherein the routing information and the tunnel state information of the at least two tunnels are stored in one route forwarding table in an IP network; detecting, by the double-ascription PE of the remote CE, tunnel states to obtain state information of the at least two tunnels; selecting, by the double-ascription PE of the remote CE, one or more available tunnels according to the state of each tunnel from the at least two tunnels; and forwarding, by the double-ascription PE of the remote CE, service according to the routing information of the available tunnels selected.