Sunday, May 13, 2012
STAR TOPOLOGY
In Star Topology devices are
connected via a centralised network component known as hub or concentrator. The
hub acts as a central controller and if a node wants to send data to another
node, it boosts up the message to the intended node. This topologies commonly
uses twisted pair cable, however, coaxial cable or fiber optic cable can also
be used.
Advantages of Star Topology
§ Star Topology is easy to install and wire.
§ The network is not disrupted even if a node fails or
is removed from the network.
§ Fault detection and removal of faulty parts is easier
in Star Topology.
Disadvantages of Star Topology
§ It requires a longer length of cable.
§ If the hub fails, nodes attached to it are disabled.
§ The cost of the hub makes the network expensive as
compared to bus and Ring Topology.
