Transmission Control Protocol

A connection-oriented protocol that aims to enable reliable communication between client and host.

Handshake

• SYN: Client sends a synchronization request -- with the SYN-bit being set
• SYN-ACK: Server response with an acknowledgement containing the initial sequence number (ISN) -- with the SYN- and ACK-bit being set
• ACK: Client response with an acknowledgement -- with the ACK-bit being set