Thanks for your comments on my first EtherGeek post on understanding the OSI Model. I especially enjoyed learning new ways to remember the OSI Model; for example: Please Do Not Throw Stale Pizza Away.

The physical layer is the first and lowest layer of the Open Systems Interconnection (OSI) communications model. The physical layer's function is to transport data using electrical, mechanical or ...

The Open Systems Interconnection -- or OSI model layers -- explains the process of endpoint communication via networking, and it is divided into seven different layers based on their functionality.

The OSI model defines protocols for how a network technically handles communications at the various functional layers. Starting with electrons and photons at the physical layer (Layer 1), the model ...

From the Open Systems Interconnection (OSI) model shown above, answer the following items: 1. Which layer encapsulates the segment into packets? 2. Which layer of the OSI model supplies services that ...

As traditional cybersecurity solutions improve, they push cyberattackers toward alternative paths. Layer 1 of the OSI model (i.e., the physical layer) has become a fertile ground for attacks and, ...

A couple posts ago, we talked about Layer 1 of the OSI Model — the Physical Layer. Today, we’ll start our climb up the Model with a visit to Layer 2, the Data Link Layer. The Data Link Layer is one of ...