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This Concept Map, created with IHMC CmapTools, has information related to: Chapter 3 Internetworking, Devices that connect networks are connectors for broadcast networks such as Ethernet. Hubs, Internetworking Often an enterprise is broken up into functional departments, such as accounting, marketing and manufacturing. It may have branches, factories and facilities in different locations. Departmental Systems, Internetworking that all information within an enterprise is related. An Enterprise Information Model attempts to relate that information so that there are no islands of data that are unconnected or need to be separately maintained The Enterprise Information Model, Devices that connect networks are similar to routers, but connect only LANs, usually Ethernet. Switches, Devices that connect networks Sometimes it is desired to pass packets through a network or series of networks using a protocol foreign to the intermediate links tunnel, Devices that connect networks are responsible for forwarding internetwork packets from one subnet or network to another. Routers, Devices that connect networks connect networks of different types, such as FDDI to Ethernet. They are often CPUs or circuit cards in a PC. Bridges