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Switches are Layer 2 devices only while Routers operate at Layer 3.

Switches by definition transfer data frames by readingFrame'sDestination MAC address & sendingitout throughtheport to which mac address (if found in table) is connected. While Routers perform data transfer by reading IP Addresses on Packets.

Switches connect devices within same network number while Routers can connect several networks & support different technologies for data transportation.

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