Network topology

Network topology defines the structure of the network. One part of the topology definition is the physical topology, which is the actual layout of the wire or media. The other part is the logical

that are commonly used are as follows:

•           A bus topology uses a single backbone cable that is terminated at both ends. All the hosts connect directly to this backbone. 

.                      •           A ring topology connects one host to the next and the last host to the first. This creates a physical ring of cable. 

.                      •           A star topology connects all cables to a central point. 

.                      •           An extended star topology links individual stars together by connecting the hubs or switches.

.                      •           A hierarchical topology is similar to an extended star. However, instead of linking the hubs or switches together, the system is linked to a computer that controls the traffic on the topology.