Intro to transport layer – Introduction to OSI layer model – The internetworking Part2
The transport layer deals with segmentation and reassembly . 2 protocols work on this layer TCP and UDP. TCP(Transmission control protocol) being the connection oriented and UDP(user datagram protocol) being connectionless.
I will get to UDP later on .Now talking about TCP. It is said to be connection oriented protocol .TCP employs sequencing, acknowledgments and retransmission . If the data is not reached in order at the receiver it has to be retransmitted .