Showing posts with label TCP/IP and the OSI Reference Model. Show all posts
Showing posts with label TCP/IP and the OSI Reference Model. Show all posts

Thursday, June 16, 2011

TCP/IP and the OSI Reference Model

As illustrated in Figure 1.2, the TCP/IP model consists of four layers, each of which can have several sublayers. These layers correlate roughly to layers in the OSI reference model and define similar functions. Some of the TCP/IP layers correspond directly with layers in the OSI reference model while other span several OSI layers. The four TCP/IP layers are: