Although the OSI model does a great job of describing in detail how the network operates, it is actually considered a reference model. To ensure proper communication between network devices, the TCP/IP protocol suite is used instead.
Note: The OSI reference model was created by the International Organization for Standardization (ISO), while the TCP/IP protocol suite was created and first implemented by the Internet Engineering Task Force (IETF).
The TCP/IP protocol suite is a modern adaptation of the OSI reference model and it contains five layers:
- Application Layer
- Transport Layer The content below this message is for members only.