Transmission Control Protocol (TCP)

• The Transmission Control Protocol (TCP) provides reliable transmission of data in an IP environment.
• TCP corresponds to the transport layer (Layer 4) of the reference model.
• Any the services TCP provides are stream data transfer, reliability, efficient flow control, full-duplex operation and multiplexing.
• TCP delivers an unstructured stream of bytes identifies by sequence numbers with stream data transfer.
• TCP offers reliability by providing connection-oriented, end-to-end reliable packet delivery through an internet work.
• TCP also offers efficient flow control, which means that when sending acknowledgements back to the source, the receiving TCP process indicates the highest sequence number it can receive without overflowing its internal buffers.
• Full-duplex operation means that TCP processes can both send and receive at the same time.
• TCP�s multiplexing means that numerous simultaneous upper-layer conversations can be multiplexed over a single connection.