TCP (Transmission Control Protocol)

A Transport Layer protocol in the TCP/IP protocol suite,

TCP is a connection-oriented protocol designed to provide reliable transmission across inherently unreliable Internet Protocol (IP) networks such as the Internet. Defined in IETF RFC 793,TCP evolved from the ARPANET Network Control Protocol (NCP), which was developed to provide reliable transmission across the analog links of unshielded twisted pair (UTP) and packet radio (e.g., AlohaNet). TCP is a connection-oriented protocol that employs virtual circuits in support of byte-stream-oriented communications. TCP provides for file segmentation into packets prior to transmission, and for reassembly upon receipt.TCP also provides for packet sequencing, end-to-end flow control, and error control, thereby guaranteeing delivery. Each packet in a stream of packets received by the destination device is either acknowledged as having been received correctly, or is retransmitted.

Source port

Destination port

Sequence number

Acknowledgement number

HLEN

Reserved

Code bits

Window

Checksum

Urgent pointer

Options (if any)

Padding

Data

. . .

• conditioned circuit
• conditioning
• conductance
• conductor
• conduit
• cone of acceptance
• cone of acceptance
• Confederation of European Posts and Telecommunications (CEPT)
• Confederation of European Posts and Telecommunications (CEPT)
• conference bridge
• conference call
• configuration management
• confirmation
• Conférence Européenne des administrations des Postes et des Télécommunications (CEPT)
• congestion
• congestion management
• conjugate structure algebraic code excited linear prediction (CS-ACELP)
• connection
• connectionless
• Connectionless Broadband Data Service (CBDS)
• Connectionless Network Protocol (CLNP)
• connection-oriented
• connector
• Consent Decree
• console