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Network topology refers to the way that your computer network is arranged. The network can have a physical or a logical topology. The physical topology describes the layout of computers and where the workstations are positioned. The logical network topology describes how the information flows through the network.
Choosing your physical topology is important because if it is not chosen correctly, this could cause your network to not operate properly. There are several terms that describe the type of physical topology that a network can have. The most common topologies are bus, ring, star, and mesh.
In a bus topology, all of the computers are attached to a single cable using terminators. The terminators work to absorb the energy from the signals in the network. The bus topology is easy to install, but it is not reliable because a single default can bring down your network.
In a ring topology, each computer is connected directly to two other computers on the network. As with a bus topology, a single fault can disrupt a ring network. This type of network does have advantages, however, and does not require a network server.
In a star topology, each computer is connected using its own separate cable. This set up is more reliable than a bus topology because its design makes it fault tolerant and susceptible to errors. The information on the network is transmitted from one system to another and the data flows in one single direction. The topology is expensive to maintain and is not reliable because removing one computer can disrupt your entire network.
In a mesh topology, a path is present from one computer to another computer in the network. The mesh topology is usually used in internet structure. The mesh topology can be complicated to construct because it has multiple connection between locations. For every computer that you have you will need at least one and a half connections for each one. This contributes to the expensive structure.
In choosing a network topology, understand that each one has its advantages and disadvantages. Research each one and see which one fits within your budget and which one fits your network layout. Also consider the amount of maintenance required in each topology.
When setting up a network at home, consider a network topology that is simple and easy to maintain. You will also want a topology that is inexpensive to set up. If you are choosing a topology for a business, you will want to consider a topology that is reliable and resistant to errors. Your customers will need a network that is free of downtime; therefore, be sure that your topology is one that withstands disruption.
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