Network topology is the configuration of connections between nodes or workstations. A network topology is the method in which nodes or devices of a network are connected by links. A node can have one or more links to others. Following are the types of topologies.
BUS Topology:A bus topology is a network architecture in which the nodes are connected via ashared communications line, called a bus. Bus topology is the cheapest topology to implement A cable break in this type can disable the entire network. Performance degrades as additional computers are added or on heavy traffic.
RING Topology:A ring topology is a topology of computer networks where each node is connected to two other nodes,so as to create a ring. If one of the nodes in the ring topology breaks down then the entire network will break down with it as itrequires a full circle in order to function.
STAR Topology:
Star topology is one of the most common computer network topologies. A star network consists of one central switch or hub to transmit messages. There are no problems with collisions of Data since each station has its own cable to the switch or hub. The centre of a star, i.e. the hub or switch, is the best place to find network faults. It is easy to add and remove new nodes to a star topology without disturbing the rest ofthe network. Failure of the central node can disable the entire network.
MESH Topology:A mesh topology is a network that employs one of two connection arrangements, fullmesh topology or partial mesh topology. In the full mesh topology, each node is connected directly to each of the others. In the partial mesh topology, some nodes are connected to all the others, but some of the nodes are connected only tothose other nodes with which they exchange the most data.
TREE Topology:A tree topology is a combination of two or more star networksconnected together. The central switch or hub of the star networks are connected to a main cable called the bus. Thus, atree network is a bus network of star networks.
