Method for detecting fault by near-end node

Abstract

This invention relates to a method for testing faults by near-end nodes including: A, a remote node of a LSP sends a test report to a near end node, B, the near end node of said LSP analyzes said test report to get the test kind and frequency of the report, C, said near node uses said kind and frequency to start up operation management and maintains the OAM test.

Description

technical field [0001] The invention relates to the technical field of fault detection in computer communication, in particular to a method for detecting faults of near-end nodes. Background technique [0002] MPLS (Multiprotocol Label Switch, multi-protocol label switching) is a complex of switching and routing, which integrates network layer routing and link layer switching. And make the user network have greater flexibility in importing and implementing new network services. However, the control plane of the current MPLS technology network is still connectionless. In order to make the data plane of the traditional IP (Internet Protocol, Internet Protocol) network transition from "connectionless" to "connection", ATM (Asynchronous Transfer Mode) is introduced. , asynchronous transfer mode) fixed-length label switching ideas, to achieve carrier-class next-generation network. [0003] MPLS technology seamlessly integrates the flexibility of IP routing technology and the si...

AI Technical Summary

Problems solved by technology

[0020] The TTSI, LSP incoming label, or reverse LSP configuration of the near-end node and the remote node are different, resulting in service failure;

[0021] The detection type or detection frequency configuration of the near-end node and the remote node are different, resulting in abnormal detection;

[0022] The reverse channel can only be an LSP, and a non-MPLS return path cannot be implemented, and when the reverse LSP is removed or cannot be forwarded, the BDI message cannot reach the remote node, and the remote node cannot know the defect;

[0023] At the same time, it is necessary to manually configure the near-end node and remote node of the LSP twice. When performing MPLS OAM detection of multiple LSPs, a lot of configuration work is required, and manual configuration errors will also be introduced;

[0024] When the detection of the near-end node and the remote node are not enabled at the same time, the detection is abnormal. For example, the detection of the near-end node is started before the remote node, or the detection of the remote node is stopped before the near-end node, and LOCVD is detected by mistake;

[0025] When it is necessary to modify the type and frequency of connectivity detection packets, the OAM function must be stopped on the remote node and the near-end node respectively, and the configuration of both ends must be re-modified before enabling the detection separately, which is inconvenient to use.

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