Different Types of Network Topologies

Different Types of Network Topologies

Network topologies are further separated into two types that are Physical Network topology and Logical Network Topology. In physical network topology includes network cables, devices and location and whereas logical network design includes how data will travel in the network. There are different types of network topologies which are discussed below:

  1. Bus Topology

In this topology, all the network nodes are connected with the single cable. The network cable to which all the nodes are connected is also called backbone, and if the backbone of network is damaged, then it will affect working of all the nodes of network. In this topology are connected with the bus cable with use of drop lines and tap. A drop line is a connection running between the main cable and device. As in this topology the signal travels along with the backbone wire in which some of the energy is transformed into heat energy, and that’s why it becomes weaker. For resolving this problem, there is a limited number of taps are allowed in the bus network.






  • In this topology, every device is connected with a single cable.
  • Transmission of data takes place only in one direction.



It is used for small network architecture.

If the main cable of network fails, it will disturb working of all the network nodes.

It is cost effective.

Network Cable has Limited Length.

It uses less cable.

Difficult Reconnection and Fault Isolation.



2.Ring Topology

In this network topology, every node of network is connected with two other nodes, and the last node of network is connected with the first node of the network forming a ring like structure. In this topology, a signal is transmitted in one direction from one device to another device until data reach to the destination device. In this topology every device act as a repeater and when one device receives a signal from another device then repeater regenerates the bits and passes to another device until it reaches to the destination device.



  • In this network, topology data transmission is unidirectional but with the use of two connections with every network node the transmission can be made Bidirectional.
  • In this data is transmitted in a sequential manner that is node by node.



Cheap to expand and install.

Network Troubleshooting is difficult.

Chances of collision of packets are less.

If one node of the network gets fails, then it will disturb working of the entire network.



3.Star Topology

In this network, all the network nodes are connected with Hub. This hub is central network equipment of network through which all the network devices are connected with the use of network cable. In this topology, if one device wants to exchange data with another device, then the data is first sent to the controller, and then controller sends data to the destination device. In this topology, every device requires only one link and one Input/output port.


  • Every Node of the network is directly connected to the Hub.
  • Hub in the network acts as a repeater.



Troubleshooting of network is easy.

High Installation cost.

Damage of one network node will not affect working of all other nodes of network.

If Hub fails then, the whole network gets fail.



4.Mesh Topology

In this network topology, a node is connected to one or more hosts in a network. All nodes of network have a point-to-point connection with every other nodes of network for distributing the data among each other. This network topology is robust, and there is less chance of data loss.

There are two types of Mesh Topology:

  1. Partial Mesh Topology

In this topology not every node has point-to-point connection with every node and some nodes of network are connected in some arbitrarily fashion. Partial topology is used when the user have to provide reliability to some nodes of the network.

2.Full Mesh topology

In this topology, every node is connected to each other and for every new host n(n-1)/2 connections are needed. Therefore, it provides reliable network structure as compare to other network topologies.


  • Robust Network Architecture.
  • Provide full network connectivity.



Network error is easily spotted.

Cost of cabling is high.

It provides security and privacy to the data.

Configuration and Installation of devices is difficult.



5.Tree Topology

In this network topology, all the network nodes are connected with the root node forming a hierarchical structure like a tree. This topology imitates as extended star topology along with this it inherits the property of bus topology. In the one network is divided into multiple layers. In the access layer which is lowermost layer of the network end devices such as computers are connected and middle layer of the network is known as distribution layer which work as mediator between the lower and upper layer in this Firewall VPN access router are installed. The uppermost is known as core layer of the network in which servers are connected WAN router, PBX, Multiplexer are installed.



  • It is mainly used in WAN (Wide Area Network) architecture.
  • Network error is easily identified.



New Node in the network can be easily added.

It has a high cost.

Network devices can be easily managed.

It requires a large number of cables in the network.



6.Hybrid Network Topology

This network topology is the mixture of one or more network topologies such as a mixture of bus, ring, mesh, tree and star topology. This topology inherits advantages and disadvantages of all incorporating network topologies.



  • It is the mixture of the Bus, ring, mesh, tree and star topology.
  • It is flexible.



The network size can be easily increased.

It is costly.

Troubleshooting of network is easy.

The design of network is complex.




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