Networking Devices-Switch
SwitchesSwitches are a special type of hub that offers an additional layer of intelligence to basic, physical-layer repeater hubs. A switch must be able to read the MAC address of each frame it receives. This information allows switches to repeat incoming data frames only to the computer or computers to which a frame is addressed. This speeds up the network and reduces congestion.
Switches operate at both the physical layer and the data link layer of the OSI Model.
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