Method, system of fault detection for pseudo wires and service provider edge router thereof

摘要

The present invention discloses a method, system of fault detection for pseudo wires (PW) and a provider edge router (PE) thereof. The method includes the following. A remote PE receives, from a local PE, a first bonding relationship between a PW and an LSP of which the starting point is the local PE. After the remote PE detects a fault of the LSP, the remote PE determines a fault of the PW based on the detected fault of the LSP, a second bonding relationship between the PW and an LSP of which the starting point is the remote PE, and the received first bonding relationship, wherein the second bonding relationship is pre-configured at the remote PE. The method, system and PE of fault detection for a pseudo wire according to embodiments of the present invention can detect a fault of the PW precisely, ensuring the consistency of PW statuses detected by PEs at the two ends of the PW.

主权项

1. A method of fault detection, comprising:
receiving, by a first service provider edge router (PE), a first bonding relationship from a second PE, wherein the first bonding relationship is between a pseudo wire PW and a first label switching path (LSP) that is from the second PE to the first PE, the first PE is an ending point of the first LSP, the second PE is a starting point of the first LSP and the second PE is coupled with a router different from the first PE; detecting, by the first PE, a fault of the first LSP by the first PE; and determining, by the first PE, a fault of the PW based on: the detected fault of the first LSP, a second bonding relationship between the PW and a second LSP of which the starting point is the first PE, wherein the second bonding relationship is pre-configured at the first PE, and the received first bonding relationship.