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Network Topologies Network Topologies Earl L Sombrero IT 205 ? Management of Information Systems Axia College of the University of Phoenix Net work topology is a
Network Topologies Network Topologies: Bus, Ring, and Star Shawn Lahne Axia College of University of Phoenix IT 205 Management of Information Systems Professor Dalin
Network topologies Network Topologies Network topologies are an important part of the network. Without the proper topology, the network may not meet the needs of
Network Topologies Network Topologies Mesh Topology provides each node in a network with a dedicated connection to every other node. Advantages: ? Improves reliability
Network Topologies Checkpoint The bus, ring and, star topologies all have there benefits and shortcomings. These three topologies all need a NIC's to communicate
Submitted by ehamady on February 4, 2006
Category: Technology
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Network Topologies
Mesh Topology provides each node in a network with a dedicated connection to every other node.
Advantages:
Improves reliability through redundancy and fault tolerance - the ability of the network to continue operation despite the presence of hardware or software faults.
Mesh networks work well when the nodes are located at scattered points that do not lie near a common line.
The Internet was deliberately designed using a mesh topology to allow sites to communicate during a nuclear war.
Disadvantages:
Expensive because of the large number of cables and connections required.
Reconfiguration of the network or the addition of another node impacts all of the other nodes.
Bus Topology - All nodes are connected to a central cable called the bus or backbone. A node wanting to communicate with another node sends a broadcast message onto the central cable, but only the intended recipient actually accepts and processes the message.
Advantages:
Less expensive because it requires less cable and hardware than other topologies because all of the nodes are in a line and lie near the bus.
Bus networks are simple and reliable.
Failure of one node does not affect others.
Disadvantages:
Entire network shuts down if there is a break in the main cable.
Performance degrades as additional nodes are added.
Heavy traffic slows down the network.
Limited cable length and number of nodes.
Problems can be difficult to isolate.
Outdated coaxial network interface cards (NIC) are more difficult to find.
Terminators are required at both ends of the backbone cable.
There can be collisions when two nodes want to communicate at the same time on the same bus.
Ring Topology - All devices are connected to one...
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