Sunday, 7 February 2021

Star Topology

What is Star Topology?

Star Topology wiring is done from a central point (the server or hub). However each node (file server, workstations, and peripherals) connected directly to a central network hub or concentrator. Data on a star network passes through the hub or concentrator before continuing to its destination. But the hub or concentrator manages and controls all functions of the network. It also acts as a repeater for the data flow. Has the greatest cable lengths of any topology (and thus uses the most amount of cable). Therefore configuration is common with twisted pair cable; however, it can also be used with coaxial cable or fibre optic cable. Generally STP or UTP, four-wire.
Star Topology

Therefore a star-wired ring topology may appear (externally) to be the same as a star topology. Internally, the MAU (multistation access unit) of a star-wired ring contains wiring that allows information to pass from one device to another in a circle or ring. The Token Ring protocol uses a star-wired ring.

Advantages

Disadvantages

Easy to add new workstations

Hub failure cripples all workstations connected to that hub

Centralized control

Hubs are slightly more expensive than thin-Ethernet

Centralized network/hub monitoring




Also learn about a FDDI Topology


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