Star Topology:

In star topology all the nodes are coupled to a central node called a hub. A node that requirements to send some six data to some other node on the network send data to a hub which in turn sends it the destination node. A hub plays a key role in such networks. Star topology is easy to set up and reconfigure. If a link fails then it divides the node connected to link from the network and the network continues to function. However, if the hub goes down, the entire system collapses.

Tree Topology:
Tree topology is a pecking order of a variety of hubs. The entire nodes are related to one hub or the other. There is a middle hub to which only a few nodes are connected directly. The inner hub, also called lively hub, appear at the inward bits and regenerates them so that they can pass through in excess of longer spaces. The secondary hubs in tree topology may be active hubs or passive hubs. The failure of a conduction line separates a node from the system.

Mesh Topology:
A mesh topology is also explains complete topology. In this topology, each node is associated directly to every oilier node in the network. That is as such there are n nodes then there would be n (n - 1)/2 physical links in the network. As there are dedicated links, the topology does not have blocking problems. Further it does not have to a special Media Access Control (MAC) protocol to prevent simultaneous access to the communication media since links are devoted, not collective. The topology also provides data security. The network can continue to function even in the failure of one of the links. Error identification is also easy. The main drawback of mesh topology is the complication of the complex and the price associated with the cable length. The mesh topology is not useful for intermediate to large systems.

Hybrid Topology:
Hybrid topology is shaped by linking two or additional topologies together. As in hybrid topology can be produced by returns of the bus, star and ring topologies