There is a special bit signaling if the buffer is full. If the buffer is full the bit signals "BUSY" as result transmission stops until the bit changes to "READY" and transmission resumes.
transport layer
transport layer
TCP and UDP are transport layer protocols; the OSI layer is layer 4 (transport)
Application layer, and Transport layer.
transport layer
transport layer
TCP operates at transport layer
Layer 4 (Transport) is responsible for correction.
Flow Control
The Transport Layer
transport layer
at the network layer, congestion control mechanism takes place