What is Network Topology? Types of Network Topology + Pros and Cons
Definition of Network Topologies, Types of Network Topologies: We are now in the age of communication, and information is our valuable asset. Sharing it with others to meet our work and personal needs is part of our daily plan. To facilitate communications and information exchange, computer networks were created. A computer network includes a number of computers and hardware, like switches, hubs, etc., that are connected through communication channels. They share their hardware and software resources. The layout and the way network systems are connected vary and are referred to as network topology. Stay with us as we discuss the types of network topologies further. You can also read the article “How to Find Mac Address Windows 11?“
Topology or connectivity refers to the connection and layout of a network’s equipment. To set up a computer network, first, you need to specify the network topology.
There are two types of topology: physical topology and logical topology. The physical topology determines the layout of network elements and how they communicate with each other. The logical topology determines how information and data are transferred between network elements.
There are two common terms in computer networks that you should learn first: a link or link between two groups of systems in a network is called a link, and each element of the network is called a node.
There are generally five types of physical network topology: linear, circular, star, mesh, and hybrid.
Next, we will discuss network topology types further:
Physical topology determines the layout of network elements and how they communicate with each other. There are a total of seven types of physical topology.
Logical topology determines how information and data are transferred between network elements. There are two types of logical topology.
In Bus topology, information is transferred in one direction at any given moment. Each network node is connected to one cable.
Advantages and Disadvantages of Bus Topology
Another of the physical network topologies is the star topology, which has the following advantages:
The cost of installing and setting up this topology is high.
If the hub fails, the entire network goes out of the circuit.
The network’s speed and performance depend on the hub’s capacity.
All network member systems are connected in a circular way to each other, and data starts circulating in the direction of the clock hands to reach its destination. This technology is commonly known as Token Ring. The first computer to be turned on creates a signal as a Token, and this token starts moving around the network. Whenever a computer wants to send data, it waits for this token to reach it, and then it sends the data.
In reality, this token allows each system to send while it circulates. When the sent data arrives at its destination, the destination system sends a message under the name Acknowledge to inform the originating system that it has received the data.
Troubleshooting ring topology is difficult, and due to the structure of this topology and the need for a token to transfer information, its speed is slow. Also, a problem in one node causes problems in the entire network.
In this topology, all network nodes are interconnected.
In this type of topology, devices connect to each other point-to-point, and all network nodes are interconnected. For data transfer on mesh topology, two methods of routing and flooding are used. In the routing method, data determines the shortest distance between the source and destination based on network routing logic and uses it for information transfer, but in the flooding method, similar data is sent to all member systems of the network.
Other features of this topology include the following:
This topology has a central device, and all network devices are connected to the central device in a specific order. Tree topology is used in large networks and includes more devices compared to linear and star topologies.
The point-to-point topology is also referred to as P2P.
In a point-to-point topology, devices are interconnected using a cable, like connecting two computers, two switches, or two routers to each other. The point-to-point topology in network texts is written in two ways, P2P and Peer To Peer. In this topology, between the receiver and sender, there are other intermediary devices for shaping the connection, but in appearance, only the sender and receiver seem to be there, like in radio communications.
Hybrid topology comes from merging two or more different network topologies with each other. For example, merging a star topology with a linear topology creates a hybrid topology.
One of the very widespread and global networks is the Internet, which allows you to quickly send your information without time and space limitations. For example, you can attach your photos to your email and send them to your sister in America. Connection to the Internet is possible through all smart systems equipped with a network card. Network protocols include Http, Https, and Ftp.
Ethernet technology is the most common method of computer communication in LAN networks. It connects devices within a network and allows information exchange between them using a common language. LAN networks are suitable for small offices, homes, or a building. Communication in this type of network is Ethernet, and the transmission of information and formatting of data in a way that other network nodes can detect, receive, and process is performed. There are two types of Ethernet networks, which we will examine further.
The data transfer speed is 100 megabits per second. It uses fiber optic or twisted-pair cables.
The data transfer speed is 1000 megabits per second. It uses fiber optic or twisted-pair cables.
CAN network stands for Campus Area Network. It comes from a combination of several LANs that are interconnected via switches and routers. These networks are used in educational centers, the military, companies, and some organizations. Using CAN, you can cover the local networks of several neighboring buildings. CAN network nodes be interconnected using fiber optic and 10 gigabit Ethernet?
CAN network management be performed from a single point? The network manager reviews the communications and transactions and, if necessary, issues more access permissions or restricts access. CAN network security is provided by a firewall. The data transfer speed in these networks is high due to the local origin and destination, and it is easy to share large files.
Connectivity or topology (Topology) refers to the way equipment in a network is connected and arranged. When setting up a computer network, the network topology must first be determined. There are two types of topology: physical topology and logical topology.
1- This topology is more flexible and reliable.
2- It can include a greater number of devices.
3- If a part of the network is faulty, the entire network will not be out of the circuit.
4- It is easy to connect to other topologies.
5- Troubleshooting or isolating a specific topology from the entire network is an easy task.
1- Hybrid topology is the most expensive network topology.
2- Managing and maintaining this network is harder.
3- It also has a high cabling cost.
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