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Method and device for detecting multi-link fault

A fault detection and multi-link technology, applied in the field of data communication, can solve problems such as high system overhead and network system performance degradation, and achieve the effects of low system overhead, performance improvement, and simple detection mechanism

Active Publication Date: 2012-12-26
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the detection process on each link is independent, n links need to set up n detection instances, the system overhead is very large, and the performance of the entire network system will be reduced

Method used

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  • Method and device for detecting multi-link fault
  • Method and device for detecting multi-link fault
  • Method and device for detecting multi-link fault

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Embodiment Construction

[0029] In order to achieve the purpose of the present invention, the core idea adopted by the present invention is: in the case that there are multiple communication links between the sending device and the receiving device at the opposite end, the sending device regularly sends the detection message according to the preset first cycle, and The detection message is copied to all links communicating with the receiving device at the opposite end and sent simultaneously; the receiving device at the opposite end counts the number of detection messages received on each link according to the preset second cycle, and At the end of the second period, the number of detection packets received on each communication link is summarized; the peer receiving device judges whether the number of detection packets on each link counted in the detection cycle is greater than the set threshold Ccmp , if yes, it is judged that the link status is normal, otherwise, it is judged that the communication ...

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Abstract

The invention discloses a method and a device for detecting a multi-link fault. The method comprises the steps as follows: under the situation that a plurality of communication links exist between a transmitting apparatus and an opposite terminal receiving device, the transmitting apparatus transmits a detection message according to a preset first period at fixed time, copies the detection message to all links communicated with the opposite terminal receiving device and simultaneously sends the detection messages; the opposite terminal receiving device counts the quantity of the detection messages received on each link according to a preset second period, and collects the quantity of the detection messages received on each communication link when the second period is finished; the opposite terminal receiving device judges whether the quantity of the detection messages on each link counted within the detection period is more than or a set threshold Ccmp, if so, whether the link state is normal is judged, or else, the communication link is judged to be in failure. By the method and the device, a multi-link fault detection mechanism between a plurality of network devices is simple, and the system overhead is small.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to a fault detection method and device when there are multiple communication links between network devices. Background technique [0002] In the application process of communication network equipment, there is such a scenario: network equipment A communicates with network equipment B, and there are multiple communication links between the two. And each link is very important, when a fault occurs, it needs to be detected and identified in time. For this reason, it is necessary to attach a detection mechanism on all communication links to detect failures on the communication links in time. [0003] In order to solve the above problem, the prior art generally adopts a solution for maintaining the state of the protocol message. The specific implementation of the program is as follows: [0004] refer to figure 1 , taking link No. 1, where network device A initiates detecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/24
Inventor 何卫斌郑国良
Owner XINHUASAN INFORMATION TECH CO LTD
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