Internetworking
As LANs grow and expand, so does the need to interconnect them. LANs have a physical distance and node limitation. LANs that support workstations and servers are designed to optimize performance. Workgroup LANs typically share files and information mostly with each other; hence, network traffic should be isolated within the workgroup. Internal traffic that leaves the workgroup LAN traverses the building or campus backbone network to designated servers. External traffic that leaves the workgroup LAN traverses through the public Internet.
Internetworking is a term used to describe connecting LANs together, as shown in FIGURE 3-22. There are several ways to connect LANs such that network traffic can traverse between them. LANs ...
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