Patent ID: 9391882
Filing Date: 2016-07-12
CPC Classification: H04L

Claim Text:
1. A method for establishing a pseudo wire, comprising: receiving, by a switching provider edge, a label mapping message from a terminating provider edge (TPE) connected to a customer edge, wherein the label mapping message comprises information of a switching provider edge at a bifurcation position, the label mapping message further comprises information of at least two next hops of the switching provider edge at the bifurcation position, wherein the switching provider edge at the bifurcation position implements redundancy protection of a pseudo wire; parsing, by the switching provider edge that receives the label mapping message, the label mapping message to obtain the information of the switching provider edge at the bifurcation position, and to obtain the information of the at least two next hops; and comparing, by the switching provider edge that receives the label mapping message, information of the switching provider edge that receives the label mapping message with the information of the switching provider edge at the bifurcation position, and if the information of the switching provider edge that receives the label mapping message matches with the information of the switching provider edge at the bifurcation position, establishing at least two pseudo wires between the switching provider edge that receives the label mapping message and at least two provider edges that correspond to the information of the at least two next hops, wherein one of the at least two pseudo-wires is set as an active pseudo-wire and at least another pseudo wire of the at least two second pseudo wires is set as a standby pseudo-wire of the active pseudo-wire.