Topology

Topology

The term topology, or more specifically, network topology, refers to the arrangement or physical layout of computers, cables, and other components on the network. "Topology" is the standard term that most network professionals use when they refer to the network's basic design.

Topology	Advantages	Disadvantages
Bus	Use of cable is economical.  Media is inexpensive and easy to work with. System is simple and reliable. Bus is easy to extend.	Network can slow down in heavy traffic.Problems are difficult to isolate.   Cable break can affect many users.
Ring	System provides equal access for all computers.Performance is even despite many users.	Failure of one computer can impact the rest of the network.Problems are hard to isolate. Network reconfiguration disrupts operation.
Star	Modifying system and adding new computers is easy.Centralized monitoring and management are possible. Failure of one computer does not affect the rest of the network.	If the centralized point fails, the network fails.