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The word “topology” originates from the Greek terms “topo” and “logy,” which respectively mean “place” and “study.” In computer networks, topology refers to the physical connections and logical flow of information within a network. It encompasses the interconnection of devices and their communication methods. If you want to delve deeper into topology networks and their various types, continue reading to expand your knowledge.
The following sections will give you detailed information on:
A topology network refers to organising nodes and connections, encompassing physical and logical aspects. Nodes typically include devices like switches, routers, and software that perform similar functions. Network topologies are often visualised as graphs, illustrating the relationships between nodes and traffic flow.
Network topologies provide information about network structures and the paths taken by data. By examining topology network diagrams, administrators can determine optimal node placements and the most efficient routes for data flow. A well-designed and planned network topology enables organisations to quickly identify faults and address issues, improving data transfer efficiency.
The topology network comprises two main components: physical topology and logical topology. Topology network diagrams depict devices as nodes and represent their connections with lines. The specific type of network topology employed depends on the desired arrangement of the network.
The importance of a topology network is as follows:
The purpose of a topology network in networking is as follows:
The working of the topology network can be summarized as follows:
The benefits of topology in computer networks are as follows:
Topology in a computer network configures a network of nodes and connects lines via sender and receiver. The different network topologies include:
Regardless of the physical structure, logical topology in computer network specifies how data is transported. Physical topology describes the arrangement of devices and connections.
A logical topology in computer network defines how data moves between computers. It establishes the path data will take as it travels through the network and is tied to a network protocol. In other terms, it refers to how the gadgets interact among themselves.
Now we have understood what is network topology, let’s understand each type of network topology in detail.
A single communication channel called a bus connects each device or node. The network’s gadgets are connected via the bus, its backbone. This architecture is straightforward and inexpensive, but if the bus fails, the SPOF or single point of failure may pause the entire network.
The stations are connected via one cable called the backbone. It works as a communication channel. When the device tries to transmit the data, it delivers a signal to the bus and travels in both directions along this cable, where each device receives the signal on the network. But only the device having the same address will process the data, and other devices will ignore it. The terminators are positioned at each end of the bus, which helps absorb the signal while ensuring adequate signal transmission and preventing reflections.
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Data travels one way around the closed loop that connects all the network’s nodes. To prevent the failure of the entire network due to a failure in the ring, redundancy is typically included in ring topologies.
The ring topology is like the bus topology in computer network, but it has connected ends. The node retransmits to the next node when it receives the message from another computer. Data is usually unidirectional. It means that this only goes in one way. An infinite loop refers to the continuous data flow in the single loop. There isn’t any terminated end, and every node is connected to all the other nodes, and it lacks a termination point. The data flows in clockwise direction in this topology. Token passing is the ring topology’s most used access technique.
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The central hub or switch is the connection point for all network nodes. Each device has a unique connection to the hub or switch, which serves as the communication’s focal point. This architecture is common because it is simple to administer, and a break in one link does not impact the other devices.
The other connected devices function as clients in a star architecture, while the hub and switch work as servers. This architecture is more secure since data does not transit via every node, and just one input-output port and cable are needed to link a node to the central device.
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Limitations:
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Every node in the network directly connects to some or all other nodes. This architecture is fault-tolerant because of the redundancy, although constructing and consuming more bandwidth can be costly.
Mesh topology in a computer network is a configuration where devices are connected to each other by several redundant connections. Several ways can help to go from one computer to the other. It does not have a hub, switch, or central computer. Mesh topology is visible on the Internet. In the WAN systems, communication failures can be a severe issue, mesh network topology is mainly employed.
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Limitations:
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Hybrid topology in computer networks is referred to as combining more than two different topologies and comparable topologies linked that doesn’t produce hybrid topology.
Hybrid topology in computer networks refers to integrating multiple distinct topologies to establish network connections and facilitate data transfer. It involves combining different types of links and nodes within a network. Hybrid topology occurs when two or more different topologies are merged, resulting in a unified network structure. However, it does not qualify as a hybrid topology if similar topologies are interconnected without any variation.
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There are six main factors you want to consider when choosing a topology network:
When selecting a topology in computer network, several factors come into play, with size, scale, and cost being the primary considerations. However, it is crucial to consider long-term aspects such as configuration management, monitoring, and overall performance.
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Several tools that help to manage and monitor networks include:
Network topology has a crucial role when determining the computer network’s performance, structure, and resilience. Hopefully, this post has helped you comprehend network topology and its types in detail so you can apply it successfully. Check out the DevOps Engineering Course by Hero Vired to Excel in the field.
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