Getting a handle on the invisible part of your network—the protocols that are in use—can be of enormous value in helping you detect problems. So far, we've talked about the tangibles of your ...

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 ITU-T and ...

So far, we've talked about the tangibles of your network—the cabling infrastructure, as well as the switches, hubs and routers. Those are things you can see and touch. But there are invisible ...

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 ...

Explains the three layers critical to network design: Access, Distribution, and Core Anyone involved in networking and/or telecommunications should be somewhat familiar with the use of layers. Many ...

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 ...

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 Away.