Hub is just a multi-port signal amplification device. When a port receives a data signal in operation, the signal has been attenuated in the transmission process from the source port to the hub, so the hub shapes and amplifies the signal to regenerate (restore) the attenuated signal to the state when it was sent, and then forwards it to all other ports in operation.

use

Hub is mainly used to set up a * * * shared network, which is the most economical scheme to directly solve the problem from server to desktop. In a switched network, the hub is directly connected to the switch and sends the data of the switch port to the desktop. Hub networking is flexible. It is located on a star node of the network, and centrally manages the workstations connected to the node, so that the faulty workstations will not affect the normal operation of the whole network, and users can freely join and quit.