Traditional Ethernet LANs run at 10 Mbps over a common bus-type design. Stations physically attach to this bus through a hub, repeater, or concentrator creating a broadcast domain.
Every station is capable of receiving transmissions from all stations, but only in half-duplex mode.
This means stations cannot send and receive data simultaneously. Many networks are experiencing bandwidth shortages. Switching technology increases the efficiency and speed of networks. Switches can Store and Forward data in Packets, thus they have built-in Buffere Memories. Switches directs network traffic in a very efficient manner- directly from the port of origin to its destination port.