Introduction to Networking: How the Internet Works
The goal of this book is to provide a basic understanding of the technical design and architecture of the Internet. The book is aimed at all audiences – even those with absolutely no prior technical experience or math skills. The Internet is an amazingly beautiful design and should be understood by all who use it. There is supporting material for the book at www.net-intro.com.
Introduction to Networking: How the Internet Works
The OSI Model
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Charles R. Severance
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Season 1
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Episode 9
This is part of the book "Introduction to Networking" at www.net-intro.com
So far we have spent all of our time describing the four-layer model used to design and implement the TCP/IP protocols and applications that make up the Internet. However, the TCP/IP model is not the only model we can use to help us understand how networks work. The other model commonly used to make sense of network design is called the Open System Interconnection (OSI) model. While the TCP/IP model was designed and evolved as the TCP/IP protocols were developed, deployed, and changed, the OSI model was the result of a careful design process by many networking experts who worked to develop a general approach to network models.
