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Transmission Control Protocol (TCP) is a Transport Layer host-to-host protocol that provides reliable, connection-oriented communication over IP networks between two endpoints. TCP uses virtual ports to create a virtual end-to-end connection that can reuse the physical connections between two computers. TCP is encapsulated within the data field of IP datagrams and TCP encapsulates higher level protocol data such as HTTP (web), SMTP (email) and many other protoocols.

  1. Transmission Control Protocol Characteristics
    1. TCP Data Transfer
    2. TCP Reliability
    3. TCP Flow Control
    4. TCP Multiplexing
    5. TCP Connection Oriented Communication
    6. TCP Precedence and Security
  2. Transmission Control Protocol Operation
    1. TCP Segmentation & Reassembly
    2. TCP Connection Establishment - The 3-Way Handshake
  3. Transmission Control Protocol Packet Structure
    1. TCP Packet Header Diagram
    2. TCP Data Field (Payload) and Upper Layer Protocols



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