INTRODUCTION TO TCP/IP
TCP/IP is a five-layer network protocol designed to interconnect independent networks together. TCP/IP is a collection of many protocols that interact with each other at different layers. Depending on the services, different protocols are used at each layer of the protocol. The following sections introduce you to the TCP/IP layers.
TCP/IP Layers
TCP/IP is a five-layer protocol. The first four layers of the protocol resemble the ISO-OSI network model. The fifth layer of TCP/IP protocol (the Application layer) covers the upper three layers of the OSI model. The two most important layers of the protocol are the Network layer, which is also called the IP layer, and the Transport layer, which is also called the TCP/UDP layer. ...
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