what is hub
Hub is a generic term, but commonly refers to a multiport repeater. A hub is the place where data converges from one or more directions and is forwarded out in one or more directions. A hub is typically the least expensive, least intelligent, and least complicated. Its job is very simple: anything that comes in one port is sent out to the others. Every computer connected to the hub “sees” everything that every other computer on the hub sees. It can be used to create multiple levels of hierarchy of stations. The stations connect to the hub with RJ-45 connector having maximum segment length is 100 meters. This type of interconnected set of stations is easy to maintain and diagnose. The following figure shows how several hubs can be connected in a hierarchical manner to realize a single LAN of bigger size with a large number of nodes. Hub shares the total bandwidth among all users so traffic more.
Hub is the place where data converges from one or more directions and is forwarded out in one or more directions.
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