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Home : Cisco IP Routing Protocols : Transport Layer

Transport Layer

Jun 28,2009 by alperen

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The Transport layer lies between the Application and Internet layers of the TCP/IP model. The two primary protocols associated with this layer are the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

TCP is a connection-based protocol, which enables error detection and correction in the data packets. It also ensures reliable delivery of data packets from source to destination. UDP is a connectionless and faster protocol as compared to TCP. It has low overhead costs and time associated with it, because it provides quick transfer of data. However, it does not provide the error detection and correction features of TCP.

The selection of protocols in the Transport layer is dependent on end user needs. TCP is used if a reliable connection session with two-way communication of data is of paramount importance. UDP is used to develop applications that are low on overheads.


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