A network device that cross-connects clients, servers and network devices. Also known as a "frame switch," stand-alone LAN switches are common in all Ethernet networks. A four-port switch is also typically built into a wired or wireless router for homes and small business (see wireless router).
LAN switches have been available for Token Ring and FDDI networks, which have mostly given way to Ethernet. ATM switches however are a type of LAN switch that is generally considered in a category by itself (see ATM). See switched Ethernet, Token Ring and FDDI.
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