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Geometric representation of how the computers are continued to each other is known every bit topology. There are five types of topology – Mesh, Star, Motorcoach, Ring and Hybrid.

Types of Topology

There are 5 types of topology in estimator networks:

1. Mesh Topology
two. Star Topology
three. Bus Topology
4. Ring Topology
5. Hybrid Topology

Mesh Topology

In mesh topology each device is connected to every other device on the network through a defended point-to-point link. When we say dedicated it means that the link only carries data for the two continued devices only. Lets say we have n devices in the network then each device must be connected with (n-i) devices of the network. Number of links in a mesh topology of n devices would be n(n-1)/two.

Advantages of Mesh topology

1. No data traffic problems as at that place is a defended link betwixt two devices which means the link is only bachelor for those 2 devices.
2. Mesh topology is reliable and robust equally failure of 1 link doesn't touch other links and the advice between other devices on the network.
3. Mesh topology is secure because at that place is a bespeak to point link thus unauthorized access is not possible.
four. Fault detection is easy.

Disadvantages of Mesh topology

1. Amount of wires required to connected each organisation is tedious and headache.
2. Since each device needs to be connected with other devices, number of I/O ports required must be huge.
3. Scalability issues considering a device cannot exist connected with large number of devices with a defended point to betoken link.

Star Topology

In star topology each device in the network is connected to a fundamental device chosen hub. Unlike Mesh topology, star topology doesn't permit straight communication betwixt devices, a device must take to communicate through hub. If one device wants to send data to other device, information technology has to first send the information to hub and and so the hub transmit that data to the designated device.

Advantages of Star topology

1. Less expensive because each device merely need one I/O port and needs to be connected with hub with one link.
two. Easier to install
3. Less amount of cables required because each device needs to be continued with the hub only.
4. Robust, if 1 link fails, other links will work just fine.
5. Easy fault detection because the link can be easily identified.

Disadvantages of Star topology

i. If hub goes downwardly everything goes down, none of the devices tin can work without hub.
2. Hub requires more than resources and regular maintenance considering it is the central organisation of star topology.

Bus Topology

In jitney topology at that place is a principal cable and all the devices are continued to this main cable through drop lines. In that location is a device called tap that connects the drop line to the principal cable. Since all the data is transmitted over the main cable, there is a limit of driblet lines and the altitude a main cable can have.

Advantages of double-decker topology

1. Like shooting fish in a barrel installation, each cablevision needs to be connected with backbone cable.
2. Less cables required than Mesh and star topology

Disadvantages of bus topology

one. Difficultly in error detection.
two. Not scalable as there is a limit of how many nodes you can connect with courage cable.

Ring Topology

In band topology each device is connected with the 2 devices on either side of it. There are two dedicated point to point links a device has with the devices on the either side of it. This structure forms a ring thus it is known as ring topology. If a device wants to send data to another device then it sends the data in 1 direction, each device in band topology has a repeater, if the received data is intended for other device so repeater forwards this data until the intended device receives it.

Advantages of Ring Topology

ane. Like shooting fish in a barrel to install.
2. Managing is easier as to add or remove a device from the topology just two links are required to exist changed.

Disadvantages of Ring Topology

one. A link failure can fail the entire network as the signal volition not travel forward due to failure.
2. Information traffic bug, since all the data is circulating in a band.

Hybrid topology

A combination of two or more than topology is known as hybrid topology. For instance a combination of star and mesh topology is known every bit hybrid topology.

Advantages of Hybrid topology

1. We can cull the topology based on the requirement for case, scalability is our concern then nosotros can utilize star topology instead of bus technology.
2. Scalable as nosotros can further connect other computer networks with the existing networks with dissimilar topologies.

Disadvantages of Hybrid topology

1. Fault detection is difficult.
two. Installation is difficult.
3. Design is complex and then maintenance is high thus expensive.

Source: https://beginnersbook.com/2019/03/computer-network-topology-mesh-star-bus-ring-and-hybrid/

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