Introduction:

The pattern of the interconnection of nodes in a network is called Topology

The selection of Topology for a network is mainly influenced by :

1. Cost: For a network to be cost-effective, one would try to reduce the cost of installation. This can be achieved by laying a pattern of a network within a range

2.Flexibility: When we apply a network to a house there are chances that we may change our house in the future, therefore laying flexible networks is important

3.Reliability: The reliability of a network is important because it should withstand the climatic changes around us and should not cause a lot of money if there is a repair

In this blog we will see about three main topologies namely:

1. Bus Topology 2. Star Topology 3. Tree Topology

Bus Topology:

In this type of network, all the nodes(computers) are connected to a single backbone cable where all the nodes can transform messages but have to be done one after the other all the nodes cannot send information at a particular moment

Advantages:

1. It is easy to extend
2. It is easy to install
3. It is less expensive

Disadvantage:

1. If there is any problem in a single node then the total system shuts down
2. Troubleshoot is difficult
3. Isolation of the faulty node is difficult

Star Topology:

In this type of Topology, all the nodes are connected to a central system in a star-like formation which acts as a hub for the entire network

Advantages:

1. If there is any problem in a single node it does not affect the entire system
2. Troubleshoot is easy
3. Faulty nodes can be easily isolated

Disadvantage:

1. It is difficult to expand
2. It is a bit expensive when compared to the bus topology
3. Cost of installation is also high

Tree Topology

It is a combination of both bus and star topology where a central node is connected to all the systems in a single path(bus topology) Star topology)

Advantages:

1. It is supported by several hardware and software vendors
2. It uses point-to-point writing for individual segments

Disadvantage:

1. If the backbone line breaks, the entire segment goes down
2. It is more difficult to configure and wire than other topologies
3. It is more difficult to configure and wire than other topologies