(In a network with excessive data traffic, a single device cannot handle it, so another device is used to manage the traffic of the network. One device is too busy to function. Make the two devices reasonably manage the burden of network traffic. F5 is a brand of load balancing products, and its position is similar to Nokia's position in mobile phone brands. In addition to F5, Radware, Array, A10, Cisco, Shenfuqi, etc. are all brands of load balancing, but since F5 has the greatest impact on such products, it is often said that F5 load balancing)