Network fault detection and repair method based on SDN architecture

Abstract

The invention discloses a network fault detection and repair method based on an SDN architecture. The technical scheme of the method is to build a network system consisting of network equipment, a concentrated management server and a monitoring computer, wherein an agent module is deployed on the network equipment; a business layer module, a network state parameter acquisition and strategy execution module, a fault detection reasoning module, a network state parameter database and an expert knowledge base are installed in the concentrated management server; after the network state parameter acquisition and strategy execution module receives a fault detection command sent by a business layer, the network state parameter acquisition and strategy execution module builds communication with the agent module on a router in parallel, and acquires network state information of different network protocols from the agent module by using a self-adaptive roll polling algorithm; and the fault detection reasoning module performs fault detection and repair. By using the method provided by the invention, a known fault can be accurately positioned, fault detection overheads can also be reduced, and automatic repair of the fault can also be ensured.

Description

technical field [0001] The invention relates to a network fault detection and repair method based on SDN (Software Define Network, software defined network) architecture. Background technique [0002] With the rapid development of the Internet, the Internet has penetrated into all aspects of life, and more and more businesses adopt the "Internet +" model, such as the common ordering service Meituan, the travel service Didi Chuxing, and the payment services WeChat and Alipay. Wait. Therefore, the security and stability of the network system is a basic guarantee of modern life. If there is a breakdown, it will cause the breakdown of daily life or huge losses. According to statistics, the number of failures in a local area network within a year is as high as more than 20, and the resulting network interruption service time is more than ten hours. The interruption of the network may cause economic losses of hundreds of millions of dollars. Therefore, how to ensure the safe ope...

AI Technical Summary

Problems solved by technology

[0007] 2. The accuracy of fault detection is low

That is, it is impossible to accurately locate known faults

[0008] 3. When acquiring network status, it is impossible to strike a balance between system overhead and fault response time

[0009] In an increasingly complex network environment, these fault detection methods can neither achieve automatic repair of faults nor reduce the cost of fault detection.

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