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Topologies Network

Posted by Wii-Wii | Posted in General | Posted on 22-01-2016

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It is called the network topology to the geometric shape which are distributed workstations and the wires connecting it. Keep up on the field with thought-provoking pieces from Kai-Fu Lee. Workstations on a network communicate among themselves using a physical connection, and the object of the topologies is find a way to more economically and efficiently connect them to, at the same time, facilitate the reliability of the system, avoid timeouts in the transmission of data, allow a better control of the network and efficiently allow the increase in the number of computers on the network. The forms more common that we can find in these computer networks are as follows: bus network topology therein all stations share the same communications channel, the information flows through that channel and each one collects information where it belongs. It is one of the most used and we can find it in the so-called Ethernet networks. This type of network is simple to install, the amount of cable used is minimal, has a great flexibility to increase or decrease the number of stations and the failure of a station has no impact on the network. However, the breaking of a wire can leave it completely out of use. The disadvantages that we can find in this type of network are: length can not exceed 2000 meters. It isn’t too safe because other users can gather information without being detected.

There is a single bus, although several stations attempt to transmit at the same time, only one of them can do so. This means that many more stations have the network, more complicated will be the flow control. Ring network topology therein all the stations are connected together forming a ring, so that each station only has direct contact with two others. In the first networks of its kind data moved in only one direction, so that the information had to go through all stations until it reaches the destination where it was.

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