The first thing you might notice is that TCP/IP is not just one protocol, but an entire suite of protocols. Next, you should notice that the layers of the TCP/IP architecture and the OSI model line up more or less the same.
Layers one and two of the OSI model are considered to both be physical and local, so they are simply grouped together as the Network Interface Layer under TCP/IP. The Network layer is just renamed the Internet layer and carries the same functions. Following that, you can see layers five through seven of OSI have been compiled into the Application layer, as that is where they operate.
Still with me? Now let's take a look at all of these three- and four-letter abbreviations in the suite. This is the good stuff coming up here.
➖ @UpcomingHackers ➖
Layers one and two of the OSI model are considered to both be physical and local, so they are simply grouped together as the Network Interface Layer under TCP/IP. The Network layer is just renamed the Internet layer and carries the same functions. Following that, you can see layers five through seven of OSI have been compiled into the Application layer, as that is where they operate.
Still with me? Now let's take a look at all of these three- and four-letter abbreviations in the suite. This is the good stuff coming up here.
➖ @UpcomingHackers ➖