level of network reference model concerned with handling low level access to network and transfer of messages among nodes including partitioning messages, keeping packet order, flow control & address generation
The OSI model layer responsible for the guaranteed serial delivery of packets between two computers over an internetwork. TCP is the Transfer layer protocol for the TCP/IP transport protocol.
The fourth layer of the OSI Reference Model. The OSI model has been designated by ITU and ISO to enable data communication between different computers, and it standardizes both the overall network structure as well as protocols used therein. Transport Layer is responsible for performing error correction to maintain the integrity of data being transmitted. see OSI Reference Model