Computer network loop detection method

Abstract

The invention discloses a computer network loop detection method which comprises the steps of (A) detecting CPU resources of a core switch and monitoring a broadcast data flow, (B) allowing a CPU to read the message of a core switch user port and judging core switch user port forms a loop, (C) allowing the CPU to judge network loop information according to the read message and loop information, (D) controlling the core switch to disconnect a network when an abnormal broadcast data flow is monitored, (E) judging whether to adopt controlled measures if the loop exists, (F) adopting the measures to stop data flow forwarding, and (G) automatically entering into a controlled state if the loop does not exist. The detection method is novel, a port with a network loop fault can be rapidly determined, thus the fault is rapidly eliminated, and the detection efficiency is high.

Description

technical field [0001] The invention relates to the technical field of computer network loop detection, in particular to a computer network loop detection method Background technique [0002] A computer, commonly known as a computer, is an electronic computing machine used for high-speed calculations. It can perform numerical calculations, logical calculations, and has storage and memory functions. It is a modern intelligent electronic device that can run according to the program and process massive data automatically and at high speed. Composed of hardware systems and software systems, computers without any software installed are called bare metal. It can be divided into five categories: supercomputers, industrial control computers, network computers, personal computers, and embedded computers. More advanced computers include biological computers, photonic computers, and quantum computers. [0003] As a commonly used tool, computers have entered thousands of households. C...

AI Technical Summary

Problems solved by technology

[0003] As a commonly used tool, computers have entered thousands of households. Computer networks (local area networks) have been established in most computer application environments. When connecting to each other, it is easy to be wrongly connected, such as connecting two crystal heads of a network cable to two ports of a switch at the same time, which will cause a network loop failure and eventually form a broadcast storm in the LAN. cause the entire local area network to be paralyzed

[0004] At present, when looking for network loop faults, a clumsy method is generally adopted. Unplug all the network cables of the switch, and then insert them one by one, and check whether there are still interruptions in the network from time to time. When a network cable is reached, and the network interruption occurs again, it will be judged that there may be a network loop under the network port, and then start from the switch under the port, and search down level by level; this method of troubleshooting network failures costs Long time, not necessarily accurate, very unscientific