Switch loop detection method and device

Abstract

The invention discloses a switch loop detection method and device. The method comprises the steps: sending, by a port, a first link layer discovery protocol message with first switch equipment information to a network; receiving all data messages from the network through the port and forwarding the data messages to the central processing unit; screening out a second link layer discovery protocol message from all the data messages; copying the second link layer discovery protocol message by using an auxiliary mirroring function of the access control list so as to transmit the second link layerdiscovery protocol message to the baseboard management controller; analyzing, bythe baseboard management controller, the second link layer discovery protocol message to extract second switch equipmentinformation; and determining the switch to be connected to the loop in response to the first switch device information matching the second switch device information. According to the invention, the network bandwidth overhead can be reduced when the loop is detected, the traffic storm is avoided, and the burden of the CPU is reduced.

Description

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AI Technical Summary

Benefits of technology

This technology helps prevent overcrowding networks caused by looping between devices that are connected together without being detected properly or causing delays during communication. It sends an announcement request for new connections along with its own identifier (ID) into the system's interface. A router then checks if any two IDs match up before sending their requested packets back downstream towards another computer called Baseboard Management Control System (BMC). If they don’t meet certain criteria, it will transfer some files onto other computers until there were enough space left around each machine.

Problems solved by technology

This patented technical problem addressed in this patents relates to reducing wasted communication over wireless networks caused by excessive data transmission during certain periods while maintaining high efficiency in transmitting signals between devices connected wirelessly without increasing interference levels that could cause signal delays due to increased power usage.

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