Tuesday, 24 June 2014

Layer 4: Transport layer

            This layer is the heart of the whole protocol hierarcy. Its task is to provide reliable cost-effective data transport from the source machine to destination machine, Independently of the physical network or network currently in use . It is upper layer of OSI model.
                 IN this layer flowing operation is perform :-
  Packet & sequencing , flow control, error control, Multiplexing, End to End delivery Addressing , Loss control.




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