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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 …

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 …