Major Functions of a Router
Routing is the process of transferring packets of information from a source to a destination node over an internetwork where at least one intermediary node is traversed along the way. Thirty years ago, internetworks were minimal in their design and monolithic in their architecture. Today, these internetworks are complex matrices of many different physical and logical topologies. Data packets now include information such as email, audio, video, graphics, and text. This complexity of routing has rapidly increased due to greater commercial exposure of large-scale internetworking and distributed-enterprise computing. Routers are regularly compared to bridges or switches, which at first glance seem to perform the same functions. ...
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