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TCP/IP Model

TCP/IP Protocol Suite

• The TCP/IP suite is the most commonly used protocol suite in the networking world.

• It is essentially the protocol suite in which the Internet was built.

• It is the standard for computer networking today.

  There were other protocol suites that have come and gone over time, such as AppleTalk, IPX/SPX, and NetBEUI, but TCP/IP still remains today in use.

• It is based on a 4-layer model that is similar to the OSI reference model.

  At different layers, there are different protocols.

OSI Model vs. TCP/IP Model