Explain the transport layer in detail.

Transport Layer: The transport layer controls and makes sure the end-to-end integrity of the data message propagated by the network among two devices that gives for the reliable, transparent transfer of data among two end points. Transport layer responsibilities comprise message routing, error recovery, segmenting and two types of fundamental services to an upper-layer protocol: connectionless and connectionless oriented. The transport layer is the highest layer into the OSI hierarchy under terms of communications and may give data tracking, sequencing of data, connection flow control, error checking and application identification and addressing.