OSI Model The OSI model was the first generally accepted reference model used to describe networking communication. While it’s still very much part of the lexicon, today’s networks run almost exclusively on TCP/IP. Let’s briefly touch on the layers of the OSI model and their functionality. We’ll continue to reference these layers when we cover […]
HP Wireless MSM
Breaking away from the typical technical implementation posts, we’ll discuss wireless network design and in particular creation of a wireless network using HP Network MSM devices. We’ll cover the core pieces required for the setup, but we won’t delve too deeply into all the configuration options. In this example we’ll design a wireless system with […]
Nagios – Powershell
There are many great Nagios plugins to provide monitoring for your printers; the purpose of this is not to introduce yet another. Instead we’ll show how to interface Nagios with NSClient to run a Powershell script. What I hope you’ll get from this post is how easy it is for you to write your own […]
HP Port Troubles Part 1: Monitoring
Today’s post kicks off the first of three discussing the use of HP Networking command line to monitor, prevent and troubleshoot issues at the port level. HP feature toolbox has a lot to offer in handling various port issues including: STP, rate-limiting, loop protection, port-security etc. One of the more common port issues, and one […]
Cisco ASA – Packet Capture
No matter how sophisticated networks become and the application layers that stack upon them, you’ll always need to know what’s going on under the waterline. If you’ve used Wireshark, then you’re probably be familiar with traffic capturing. The distinction here is that we’re not concerned with where to tap the wire (as our device is […]