Ethernet LAN's are a cost-effective way to improve the performance of a network. At first, LAN's were added by a user as needed in an unstructured fashion. An adapter that can only transmit, or receive, one at a time, is called half-duplex. All users vie for the same bandwidth. Others stations must wait while another station is transmitting. This cause delay and communication limitations. LAN switches help to eleviate this problem by allowing for simultaneous communication between ports. Switches are different than routers because they function more simply, have a higher aggregate bandwidth, and the latency is much lower. Switches can connect shared segments or dedicated segments to any port on a switch.
Because of cost users do not want to entirely replace the current infrastructure; using switches allows for and increased bandw
ith with out replacing the existing cables or equipment. In today's busy and fast paced networks the demand for more powerful work stations have lead the way for the development of high-bandwidth network applications. Applications such as multimedia cannot function properly when there are long delays or a large variation in the delay. The problem is help by adding a dedicated a full bandwidth to each station.
Full duplex is a well know mode of operation in wide area telecommunication networks. With the recent development of LAN switching technology it is now practical to consider switching and FDX operations at increased speeds. In a full duplex operation, the paths to transmit and receive can be used simultaneously on a point to point link. There are no collisions, which simplifies the protocol.
With a full duplex operation there is no need to rep
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