conceptual model and set of communications protocols used in the internet and other networks.
Known as TCP/IP because those are two of the foundation protocols in the suite
Developed by the united states Department of defense through DARPA
Similar structure to the OSI model , but with fewer layers
This is the model actually in use in modern networks
The OSI model still influences how network engineers think and talk about networks .
The application ,presentation , and session layers of the OSI model are essentially equivalent to the application layer of the TCP/ip model
