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Grokking Computer Networking for Software Engineers

The TCP/IP Model

Discover the structure and purpose of the TCP/IP model, the foundation of modern Internet communications. Learn the five layers, the main protocols involved, and the differences compared to the OSI model. Understand design principles like the end-to-end argument and packet switching that influence network resilience and functionality.

We'll cover the following...

Introduction

  • The TCP/IP Model, also known as the Internet protocol suite, was developed in 1989.

  • Its development was funded by DARPA (Advanced Research Projects Agency (ARPA) was renamed to the Defense Advanced Research Projects Agency (DARPA)!)

  • Its technical specifications are detailed in RFC 1122.

  • This model is primarily based upon the most protocols of the Internet, namely the Internet Protocol (IP) and the Transmission Control Protocol (TCP).

  • The protocols in each layer are clearly defined, unlike in the OSI model. In this course, we’ll largely adhere to the TCP/IP model and take a protocol-oriented approach. ...