A tutorial on the Open Systems Interconnection (OSI) networking reference model plus tips on how to memorize the seven layers.

According to the OSI Model, the session layer is where connections are established, managed, and torn down. For connection-oriented network protocols, understanding how the session layer works ...

What does OSI model actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

I like to think of the transport layer as the layer of the OSI Model that enables more interesting traffic. While we network engineers may love a lot of the simpler uses of the IP protocol and ...

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 ...

1. In the OSI model, data flows down the transmit layers, over the physical link, and then up through the receive layers.

The Access layer is typically composed of many switches or hubs that service a particular floor of a building or a department within the building; however, OSI model Layer 3 devices (such as ...

The OSI model is the basis for most of the modern digital communications. Let’s dive into the seven layers of the OSI model and answers the billion-dollar question: how to protect the transmitted data ...

Network security is essential at every layer of the OSI model, including the mythical eighth layer, where users interact with technology.

The layers serve as installation platforms for emerging or developed standards and protocols. When protocols are developed by organizations such as, IEEE, ANSI, or the ITU-T, for example, they are ...