The TCP/IP Protocol is the protocol or language used in modern communications; it is the only protocol used by the internet. The TCP/IP model is derived from the OSI reference model, and it is a four-layer model:
|
Layers |
TCP/IP model layers |
Corresponding OSI layers |
|
4 |
Application |
Application, presentation, and session |
|
3 |
Transport |
Transport |
|
2 |
Internet |
Network |
|
1 |
Network |
Data link and physical |