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Ring Topologies
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Ring Topologies Bus Topology A Bus Topology is the oldest and most simple method of networking a group of workstations. The computers are set up in series from a single server in a straight line. Although easy to implement it is prone to problems as the network connection once broken separates all the other workstations, beyond that connection, redundant as well. So if the first link from server to computer were to break the whole system would go down. Therefore for those companies requiring failsafe systems, which cannot afford any downtime, the Bus Topology is a poor choice. However, if these are not main priorities the bus topology is cheap and allows easy extension possibilities were more users added to the system. Token Ring Token Ring uses a ring topology whereby the data is sent from one machine to the next and so on around the ring until it ends up back where it started. It also uses a token passing protocol, which means that a machine can only use the network when it has control of the Token; this ensures that there are no collisions because only one machine can use the network at any given time. If someone wanted to send information to another computer in the ring it would first have to wait till the free token became available before it could attach its “data package.” The problem with the Token ring is that only a limited number of users can use the system at anyone time, otherwise the network would become too slow as information would take to long to pass around the ring. Also if there is a very large file being sent it can has to be sent in lots of small data packages and can take a long time to both up and download.
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