OSI-101* First, and foremost, the OSI stack is just a theoretical reference model. There is no actual OSI software. It has been around since about 1980, and it is based upon recommendations from the ...

The official definition of the OSI model goes something like: The Open Systems Interconnection model (OSI model) is a conceptual model developed by the International Organization for Standardization ...

In this two-part series, we'll provide a different view of the OSI model, showing how the layers are interconnected and what protocol services are available at each level. In Part 1, we'll provide a ...

CSOI represents a forward-thinking shift in network security architecture. By introducing an identity-aware layer into the OSI model, it lets organizations, especially those reliant on legacy systems, ...

And, if the IoT is truly just the era of M2M coming of age, and most of the devices within it are autonomous machines, then it should get serious consideration as the base model going forward. OSI-101 ...

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 ...

Because we work so much with TCP/IP nowadays, even though TCP/IP is a layer 4 stack I sometimes find myself thinking of it as the application layer. Maybe it’s because I tend to associate ...

In his new book Hack the Stack, author and security expert Michael Gregg outlines how to secure the network using the OSI model. By Andrew R. Hickey Published: 11 Jan 2007 15:41 ...

This paper explains the 2 popular reference models: OSI reference model and TCP/IP model, by comparing the functionality of each layer in both models.

At OSI’s bottom is the physical layer, on which the data-link layer containing Ethernet sits. “Ethernet is a communications protocol for only the lowest layers of the communications stack: physical ...