18-03-2011, 06:22 PM
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 | M.Arsalan Qureshi | | Join Date: Oct 2008 Location: Garden Town, Multan Cantt
Posts: 616
Program / Discipline: BSTS Class Roll Number: 09-31 | |
 Network Models
Network Models
* The five-layer model provides guidelines for the development of universally compatible networking protocols. * The physical, data link, and network layers are the network support layers. * The application layer is the user support layer. * The transport layer links the network support layers and the user support layer. * The physical layer coordinates the functions required to transmit a bit stream over a physical medium. * The data link layer is responsible for delivering data units from one station to the next without errors. * The network layer is responsible for the source-to-destination delivery of a packet across multiple network links. * The transport layer is responsible for the process-to-process delivery of the entire message. * The application layer enables the users to access the network.
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