By Kailin Acheson
The previous two parts of this blog, Part I and Part II, covered the seven layers of the Open Systems Interconnection (OSI) model. This installment will cover the four layers of the Transmission Control Protocol/Internet Protocol (TCP/IP) model and contrast the TCP/IP model with the OSI model.
By John Oden
It’s difficult to have a conversation about networking without hearing someone refer to this layer or that layer. If you talk for more than a few minutes, you’ll soon hear someone say this device operates at Layer X or that device operates at Layer Y. We often begin these conversations assuming that everyone knows what these layers are and how they relate to the issues being discussed.