How to Plan for Tactical Communications
As I just finished a year in a formal school, I find myself thinking back to my original Marine Corps schools and continually …
QoS on the Black Core
Black core routing (BCR) brings a lot of interesting capabilities and employments, but will require me to modify my standard approach to …
EIGRP OTP Part 2
The snowmageddon in Virginia gave me some unexpected lab time, so I hopped back into VIRL and decided to kick the tires …
EIGRP OTP
While I was at Cisco Live last summer, I sat through a presentation on some new features of EIGRP by Donnie Savage. …
How Does CLO Work?
I’ll admit that I was a bit intimidated when I was first introduced to PKI/CLO (Public Key Infrastructure/Cryptographic Logon). I knew I …
Very Basic RAID Explanation
Teaching RAID for Network+ and Security+ was always pretty easy because things were very surface level and you never had to really …
Capturing Packets on Your Cisco Router
I’m a big fan of using network taps when I’m going to be working with Wireshark, but they require either foresight during installation or …
The Very Basics of How a Filer Works
Our storage devices, largely NetApp filers, are the least understood piece of gear in our inventory. Not because they are infinitely more …
Looking at a Frame
This is going to be a pretty short post because Layer 2 is actually pretty simple. For this post I don’t really …
What Does it Mean to be a Certain Layer Protocol?
When I used to teach the CompTIA courses at the cyclic rate, one of the concepts that students often struggled with was: …