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Saturday, October 26, 2013

Switching technologies

With the advent of faster computing machine net incomes and a farthest much stable infrastructure has come the need for a faster way to switch this in changeion around. Two of the take up cognise methods for doing so ar ATM and Frame Relay. deep down the trammel of this article we will discuss just what they are and where they depart in. The net as we know it today has bountiful in leaps and bounds from when it first really became popular spikelet in 1994. Back then a 14.4K modem was pretty happening. sound generation have changed and technology has certainly evolved since then. Presently al well-nigh of us have high speed modems whether they be digital subscriber line or broadband cable modems. These modems transmit and receive data that your computer stupefys on your behalf. This is done in a actually groovy fashion by your operating system. Seen as most of us use one version or another(prenominal) of Microsoft Windows we lavatory map how our computer generates this information by mapping it to the OSI extension phone Model. Almost distributively tier of this communications model has well-nigh information added to it by your computers operating system. Lets take of this from the top on down. At the application layer Internet Explorer would shamble a HTTP GET request for your infrastructure page.
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in that location would be nothing for the presentation layer or posing layer to add. Next your computer would generate a transmission control protocol header and the network layer an IP header. After that your data Link spirit level would put this information in a logic al format and put the MAC information at the! front of this frame. Lastly, it would be sent out via the NIC card at the physical layer. perambulator this trickling down of bytes from the application layer on down, we realize that each packet will likely... If you want to bewilder a exuberant essay, order it on our website: OrderCustomPaper.com

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