Layer 2 of the OSI model is where we find the Data Link Layer, which provides the mechanism by which data is transferred from node to node across a network. What makes this layer important is that it ...

Peeling back the layers of IoT devices reveals most of them are nothing more than what are already on the Internet in the form of present-day M2M devices. In just six years, according to Cisco Systems ...

This course introduces students to the fundamentals of computer networking, the OSI stack, and the practical and conceptual skills needed to build simple local area networks, perform basic device ...

Denial of service attacks continue to become increasingly prevalent in the world of the black hat, and also continue to move up the OSI stack from the network level toward the application level, ...

Getting started on designing a network is a task of formidable proportions, but all the more so if you are looking to build a secure IT network. Often, IT system administrators are not fully familiar ...

Most IT users will be familiar by now with the idea of `the software-defined something or other’. Indeed, there vendors that already talked about software-defined everything, which really should cover ...

Whether it’s wired or wireless, most data communications today happens by way of packets of information travelling over one or more networks. But before these networks can work together, though, they ...

Network protocols are formal standards and policies consisting of rules, procedures, and formats that define how data is exchanged over networks. They ensure that devices can communicate effectively, ...