The third layer of the OSI Model, the network layer, is where most network engineers focus their time and expertise. As Darragh commented in my post on the data link layer, Layer 2 is cool but Layer 3 ...

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 ...

There is little argument that a defense in depth model is the best way to safeguard the enterprise, but which layer is most critical? Some would say the application layer will ultimately emerge as the ...