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

Of the seven layers of the OSI Model, layers 5 and 6, the session and presentation layers, are the two least relevant layers for network engineers. Disagree?

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

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 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 ...

OSI has long set the industry standard for what constitutes open-source software, but AI systems include elements that aren’t covered by conventional licenses, like model training data.

And the class process: I would call upon the comp sci students to briefly describe the seven layers – because heaven knows they knew them better than I ever would – and then ask the non-technical ...

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