Different Types of Network Topology
Topology refers to how the nodes within a network are laid down either physically or logically. The Network Topology represents the connection of the links and nodes with each other. There are mainly 6 types of Network Topology as given below :
1. Mesh Topology
2. Star Topology
3. Bus Topology
4. Ring Topology
5. Tree Topology
6. Hybrid Topology
In Mesh topology, each node has a dedicated point-to-point link to every other node. A fully connected mesh network having ‘n’ number of nodes has a total of nC2=n(n-1)/2 number of links.
Advantages of Mesh Topology:
In star topology, each node has a dedicated link to a central node that is called ‘HUB’. HUB acts as an exchange of data between any two nodes. In a star network having ‘n’ number of nodes including the central node, the number of the link is (n-1).
Advantages of Star Topology:
In a Bus topology, a link cable usually known as Backbone which travels from one place to another and different nodes are connected to the backbone via drop lines and taps. Drop lines are a cable running between the device and the backbone. Taps are generally punched connectors. Bus topology uses multipoint communication rather than point-to-point communication.
Advantages of Bus Topology:
In a ring topology, each device has a dedicated point-to-point link only with the next device on either side of it. All the devices form a closed loop and signal travel in one direction through the ring until it reaches the destination. Each device receives the message and if the destination device is different from itself and it regenerates the message and passes on to the next device.
Advantages of Ring Topology:
Tree topology is a variation of star topology. In this topology, some of the nodes are connected to the central node that is called HUB. Some of the nodes are connected to the secondary hub which is connected to the central hub. The central hub is active, it contains repeater but the secondary hub may be active or passive.
Advantages of Tree Topology:
Hybrid Topology is a combination of two or more topologies.