The purpose of this post is to reference the CCNA Data Center (640-911) exam. This exam starts the conversation of IPv6 and since IPv6 is hexadecimal this post starts the talk about how we look at a hexadecimal values and learn how to convert them to binary and decimal. If you know subnetting skills then this won’t be …

Just wanted to put this up has Cisco has recently released VIRL. This is a network simulation platform that you can run Cisco operating systems on which are the same operating systems that run on Cisco hardware so anything you do in this simulation environment would be realistic if it was running on dedicated hardware. …

Get your IOS, IOU, XRV, 1000v, HP, Juniper, Arista, and other images ready because that's the beauty of GNS3, it's here and ready to download. I'm excited for this release although the last post I did was In May of 2014, which was about getting GNS3 Alpha 3 working on Windows, you can see the full post here: GNS3 Alpha …

So I've played around with two Cisco Nexus 5672UP switches which will be in production soon but before that I wanted to see what it took to get enhanced vPC online. Along the way I was into some new territory as I never stood up vPC before, so in this post I have posted some things to keep in mind and running-config …

We are at the last chapters of the CCNA Data Center 640-911 by Todd Lammle. Chapter 12 talks about redundant switched technologies and chapter 13 talks about security. Just like before I will go over the high-points, so let’s get started! Chapter 12 Overview: In this chapter we get to learn about Spanning Tree Protocol …