A METHOD FOR FAULT DETECT , REPORT AND MAINTENANCE NEGOTIATION CONTROL OF MULTI-SEGMENT PSEUDO WIRE

摘要

A method for fault detect, report and maintenance negotiation control of the multi-segment pseudo wire solves the problems in the prior art that the fault report of multi-segment pseudo wire and the end-to-end maintenance can not be performed and flexibly selecting a corresponding maintenance policy according the capability of devices can not be provided. The method of detect is that an end-to-end detection message which is transmitted by a source node is transparently transmitted by a switching node to an ultimate node, thereby realizing the end-to-end detection. The method for reporting the fault is that the switching node transmits a fault notification message transparently transmitted and carrying the fault information to a downstream ultimate node when detecting the fault. The method of maintenance negotiation control is that the fault detection information and the fault reporting capability information are carried in the established message during establishing the multi-segment pseudo wire and enables the terminal to flexibly select the maintenance method which accords with the predetermined policy according to the finally supported capability.