Star topology

Star topology is a form of network topologies in the form of convergence of the central node to each node or user. Star network topology including network topology with medium cost.
Excess

* Damage to a single channel will only affect the channel network and the station adrift.
* Security level is high.
* Resistant to a busy network traffic.
* Additions and reductions station can be done easily.
Shortage

* If the node was malfunctioning, then the entire network to a halt.
Handling

* The need for a backup center node set.

Source :http://id.wikipedia.org/wiki/Topologi_bintang

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