What is the function of the Transport Layer in TCP/IP?

The Transport Layer in the TCP/IP model plays a crucial role in ensuring that data is transferred reliably across a network. One of its primary functions is to break large pieces of data from applications into smaller, manageable packets. This is essential because networks generally have limits on the size of data that can be transmitted in a single transmission unit. By segmenting data, the Transport Layer not only facilitates the transmission of data but also allows it to be reassembled correctly at the destination.

Furthermore, it also governs the reliability of the transmission through mechanisms like acknowledgments and error detection, ensuring that packets are received correctly and in the right order. This segmentation process establishes a more efficient and orderly exchange of data across the network, addressing concerns such as data congestion and loss.