交换机冗余链路引起的网络拥塞问题

Switch Circle Problems Caused by Redundant Link

网络中,冗余链路可以保障网络的高可用性,但它也会引起数据帧在网路中不停地兜圈,导致广播风暴、MAC地址表不稳定、重复帧等,从而引起网络拥塞。该文结合模拟实验探讨了交换机的工作原理及数据转发流程,及如何避免数据帧的兜圈引起网络拥塞,为网络设备的高可用性配置提供了实践指导。

In the network,redundant links can ensure network higher availability,but it can also cause that data frame go around in circles ceaselessly in network,leading to a series of problems,such as broadcast storm,unstable MAC table and repeat frames,resulting in Network congestion.Based on the simulation experiment,the working principle of the switch and the data forwarding process mainly is discussed,which provides the basis for the configuration,management,maintenance work of network devices.