Dictionary · Networking Fundamentals
TCP/IP Model
TCP/IP — Transmission Control Protocol/Internet Protocol
Models · Beginner
A four-layer description of Internet communication: link, internet, transport, and application. Some textbooks split the link layer differently, but the jobs stay the same.
This is the practical map of how the Internet moves data. It groups the work into the local link, addresses and routing, transport between programs, and the application itself.
Picture it
This is the practical map. Link, internet, transport, and application describe the same work as the seven-layer model, with less detail.
Example: A web request uses an application message, a transport connection, an internet address, and a local link frame.
Common misconception
- It is not a competing Internet that replaces the seven-layer model. The two models describe the same work at different levels of detail.