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  2. Internet protocol suite - Wikipedia

    en.wikipedia.org/wiki/Internet_protocol_suite

    The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the set of communication protocols used in the Internet and similar computer networks according to functional criteria.

  3. Transmission Control Protocol - Wikipedia

    en.wikipedia.org/wiki/Transmission_Control_Protocol

    In version 4, the monolithic Transmission Control Program was divided into a modular architecture consisting of the Transmission Control Protocol and the Internet Protocol. [ 5 ] [ 6 ] This resulted in a networking model that became known informally as TCP/IP , although formally it was variously referred to as the DoD internet architecture ...

  4. Internet Protocol - Wikipedia

    en.wikipedia.org/wiki/Internet_Protocol

    The Internet protocol suite is therefore often referred to as TCP/IP. The first major version of IP, Internet Protocol version 4 (IPv4), is the dominant protocol of the Internet. Its successor is Internet Protocol version 6 (IPv6), which has been in increasing deployment on the public Internet since around 2006.

  5. List of TCP and UDP port numbers - Wikipedia

    en.wikipedia.org/wiki/List_of_TCP_and_UDP_port...

    This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic.

  6. Transport layer - Wikipedia

    en.wikipedia.org/wiki/Transport_layer

    The protocols in use today in this layer for the Internet all originated in the development of TCP/IP. In the OSI model the transport layer is often referred to as Layer 4, or L4, [2] while numbered layers are not used in TCP/IP. The best-known transport protocol of the Internet protocol suite is the Transmission Control Protocol (TCP).

  7. OSI model - Wikipedia

    en.wikipedia.org/wiki/OSI_model

    TCP/IP does recognize four broad layers of functionality which are derived from the operating scope of their contained protocols: the scope of the software application; the host-to-host transport path; the internetworking range; and the scope of the direct links to other nodes on the local network. [47]

  8. Application layer - Wikipedia

    en.wikipedia.org/wiki/Application_layer

    An application layer abstraction is specified in both the Internet Protocol Suite (TCP/IP) and the OSI model. [2] Although both models use the same term for their respective highest-level layer, the detailed definitions and purposes are different. [3]

  9. Data link layer - Wikipedia

    en.wikipedia.org/wiki/Data_link_layer

    In the Internet Protocol Suite (TCP/IP), OSI's data link layer functionality is contained within its lowest layer, the link layer. The TCP/IP link layer has the operating scope of the link a host is connected to, and only concerns itself with hardware issues to the point of obtaining hardware (MAC) addresses for locating hosts on the link and ...