Loopback detection method and system

Abstract

The invention discloses a loopback detection method and system, and relates to the technical field of network transmission. According to the invention, each port of the device has the function of sending and receiving the loopback detection frame; the equipment judges whether a loopback problem occurs in the current network or not by receiving the loopback detection frame, and can timely perform blocking processing of the loopback port under the condition of no external operation, so that the loopback in the network is prevented from influencing data information transmission of the existing network, and the broadcast storm influence caused by the loopback in the network is eliminated.

Description

technical field [0001] The invention relates to the technical field of network transmission, in particular to a loopback detection method and system. Background technique [0002] In the process of network networking, for a LAN with a certain scale, the number of ports using the switching function will be very large. When these ports are connected to each other, it is easy to cause a network loop, thereby causing a network loop failure. A network loop failure will cause data communication packets to be forwarded repeatedly in the network transmission channel, eventually forming a broadcast storm. The real problem caused by the network loop is the broadcast storm. Problems occur due to the existence of broadcast storms, which will occupy a large amount of network bandwidth, resulting in a decline in the quality of normal running services, and even complete paralysis or even crashes. In telecom operators and enterprise networks, the loop problem has always been the main probl...

AI Technical Summary

Problems solved by technology

[0002] In the process of network networking, for a LAN with a certain scale, the number of ports using the switching function will be very large. When these ports are connected to each other, it is easy to cause a network loop, thus causing a network loop failure.

A network loop failure will cause data communication packets to be forwarded repeatedly in the network transmission channel, eventually forming a broadcast storm. The real problem caused by the network loop is the broadcast storm. Problems occur due to the existence of broadcast storms, which will occupy a large amount of network bandwidth, resulting in a decline in the quality of normal operations, and even complete paralysis to a crash

In telecom operators and enterprise networks, the loop problem has always been the main problem that leads to network quality degradation or even paralysis. The loss and delay of data communication caused by the loop problem will cause great economic losses to telecom operators and enterprises.

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