What Does Layer 4 Mean?
Layer 4 refers to the fourth layer of the Open Systems Interconnection (OSI) Model, known as the transport layer. It provides the transparent transmission or transfer of data between end systems or hosts and is responsible for end-to-end error recovery, as well as flow control.
Techopedia Explains Layer 4
Layer 4 provides the host-to-host or end-to-end transfer of data and communication services for applications that use the layered structure of the OSI model. Layer 4 provides such services as connection-oriented data stream support, flow control, multiplexing and reliability.
