Method, device and system for precisely locating fault position under multi-protocol label switching environment

Abstract

The embodiment of the invention provides a method, a device and a system for precisely locating a fault position under a multi-protocol label switching environment. The method comprises the steps of: when a communication fault occurs, receiving an alarm indication signal (AIS) sent by a lower network server layer, by an upper network client layer, wherein the AIS carries the location information of a fault point; and acquiring the location information of the fault point by the client layer according to the received AIS. By means of the method, the client layer can immediately acquire the specific location of the fault point so as to rapidly locate the fault and increase operation and maintenance efficiency.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method, device and system for accurately locating fault locations in a multi-protocol label switching environment. Background technique [0002] Currently, MPLS-TP (MPLS Transport Profile) provides a streamlined MPLS environment with transport characteristics, in which the operation, management, and maintenance (OAM, Operation, Administration, and Maintenance) of MPLS-TP ) technology is the most important feature of MPLS-TP. As an important tool to reflect the network operation status, OAM provides a series of functions, including fault detection, diagnostic test, packet loss statistics, delay statistics, fault notification, alarm suppression, automatic protection switching, etc. Customers have a complete and comprehensive network quality monitoring and automatic network protection mechanism. [0003] For example, when any node or link in the MPLS-TP environment fails, th...

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Problems solved by technology

[0004] However, in the above-mentioned existing AIS technology, after receiving the AIS message, the client layer cannot obtain the information of the specific fault location that caused the fault, and can only obtain the topology relationship through the network management to calculate the bearer relationship. In some scenarios, different The operator's network management is separated, so it is impossible to effectively obtain the exact location of the fault, which brings great trouble to the discovery and resolution of the fault

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