Beyond LANs—Repeaters, Bridges, and Routers

Hubs and switches are the only connectivity equipment needed for a workgroup LAN. However, if the network needs to span longer distances than those supported by the network cabling in use or needs to connect to another network, additional connectivity equipment is needed.

  • Repeater— A repeater boosts signal strength to enable longer cable runs than those permitted by the “official” cabling limits of Ethernet. Hubs and switches can be used as repeaters.

  • Bridge— A bridge connects two networks that use the same protocol to each other. For example, a Wireless Ethernet network can be connected to a wired Ethernet network with a bridge.

  • Router— A router is used to interconnect a LAN to other networks; the ...

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