Network fault detection method, primary device, slave device, control terminal and system

A network failure and control terminal technology, applied in the field of network communication, can solve problems such as long service interruption time, difficulty in detecting network failure, difficult operation, etc., and achieve the effect of improving accuracy and speed

Inactive Publication Date: 2009-04-08
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In prior art 1, due to the large amount of business traffic on the Internet, it is difficult to judge faults based on the ping packet statistics of each network device, and it takes a long time
In addition, in a virtual private network (VPN, Virtual Private Network), it is also difficult to construct a ping packet consistent with the business flow to detect network failures
This process will take a long time, causing business interruption for too long
[0008] In prior art 2, the constructed detect

Method used

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  • Network fault detection method, primary device, slave device, control terminal and system
  • Network fault detection method, primary device, slave device, control terminal and system
  • Network fault detection method, primary device, slave device, control terminal and system

Examples

Experimental program
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Example Embodiment

[0043] Example 1

[0044] In order to quickly and accurately detect a faulty network device or link when a network service is interrupted, an embodiment of the present invention proposes a method for network fault detection, see figure 1 , The method includes:

[0045] 101: Obtain a preset number of interrupted service messages, and modify the interrupted service messages according to a preset strategy to generate a detection message.

[0046] When a certain service is interrupted in the network, the interrupted service message is regarded as an interrupted service message. Obtaining a preset number of interrupted service packets specifically includes: receiving packets passing through its own ingress port, identifying interrupted service packets by matching the packets passing through its own ingress port, and then following specific instructions or pre-configured selection strategies. A preset number of interrupted service messages are selected from the obtained interrupted ser...

Example Embodiment

[0057] Example 2

[0058] In the embodiment of the present invention, it is described in combination with a specific application scenario, which is such as figure 2 Shown: a certain service is interrupted in the network U1 to U2, the transmission direction is U1 to U2, and the network devices passing by are A, B, C, D in sequence.

[0059] In order to collect information about the failed network device or link, the following preparation steps are required:

[0060] (1) Through negotiation, the network device A adjacent to the start end of the message transmission is used as the master device, and other network devices B, C, and D are used as slave devices. The master device is used to collect feedback information reported by the slave device, and the slave device is used to report feedback information to the master device.

[0061] (2) The master device A initiates connections to the slave devices B, C, and D respectively, and is used to transmit the request information and feedb...

Example Embodiment

[0090] Example 3

[0091] The embodiment of the present invention provides a main device 401 for network fault detection, see Figure 4 , The main device 401 includes:

[0092] The generating module 401a is used to obtain a preset number of interrupted service messages, and modify the interrupted service messages according to the preset strategy to generate detection messages;

[0093] The forwarding statistics module 401b forwards the detection message to the slave device in the transmission direction of the interrupted service message, and generates statistical information. The statistical information includes the number of generated detection messages and the number of detection messages passing through its own outgoing port;

[0094] The receiving module 401c is configured to receive feedback information of each slave device, where the feedback information includes the number of detection packets passing through the ingress port of the slave device and the number of detection ...

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PUM

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Abstract

The embodiment of the invention discloses a method, a main device, a slave device, a control terminal and a system for detecting network faults, belonging to the network communication field. The method comprises: obtaining interrupt business messages of presupposed quantity and modifying the interrupt business messages to generate detecting messages; forwarding the detecting messages to the device and generating statistic information; receiving feedback information from the device and judging network faults according to the statistic information and the feedback information. The main device comprises a generating module, a forwarding statistical module, a receiving module and a judging module. The slave device comprises a receiving module, a detecting module, a statistic module and a sending module. The control terminal comprises a receiving module and a judging module. The system comprises the main device and the slave device. The technical scheme of the embodiment improves the accuracy and the speed for the detection of the network faults.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a network fault detection method, a master device, a slave device, a control terminal and a system. Background technique [0002] In a large-scale network composed of dozens or even hundreds of routers, which carry multiple services such as voice, signaling, and data, when a certain service is interrupted on the network, the reason may be that the network equipment in the network is faulty or Link failure. The key to dealing with network service interruption is to accurately determine the cause of the failure. After determining the cause of the failure, various operations can be used to restore services, such as single-board reset, complete machine restart, and replacement of spare parts. The operation of service restoration will not take a lot of time . [0003] In the prior art, when services in the network are interrupted, there are two methods for detecting network faul...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/56H04L29/06
Inventor 孙建平
Owner HUAWEI TECH CO LTD
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