The OSI (Open Systems interconnection) reference model is a conceptual framework used to understand and implement network protocols through seven layers. Each layer provides a specific function. The ...

A reference model is a virtual model which defines how communication should take place. It logically divides the processes which are required for the communication into layers. This concept is known ...

Getting a handle on the invisible part of your network—the protocols that are in use—can be of enormous value in helping you detect problems. So far, we've talked about the tangibles of your ...