Recent posts

Subnetting Made Easy, Part 6

March 27, 2016 | 21 minute read

Note: As you will soon see I use tables (some might say excessively :P) in this post. I did this is because it closely resembles what a lot of network engineers do when they’re performing subnet calculations with a pen and paper. This is a very important skill to learn as you won’t always have access to a subnet calculator when you need one. I ...

The NetApp Zero to Hero Guide - What is RAID?

December 29, 2015 | 2 minute read

If you’ve never delved into the server or storage side of the IT industry, there is a chance you might not have heard of RAID before (Redundant Array of Independent Disks). Now before I get started I just wanted to point out that as there is already a massive amount of RAID information available on the internet, I’m going to do my best not to re...

The NetApp Zero to Hero Guide - Introduction

December 29, 2015 | 1 minute read

Just under a year ago I wrote a blog series called NetApp From The Ground Up - A Beginner’s Gude. Since the publication of the series I have been getting e-mails, Tweets and LinkedIn messages from people asking for more. So here it is - The NetApp Zero to Hero Guide. This series of posts is aimed at people who have zero storage knowledge. Each ...

Finding a Host’s Switchport

October 30, 2015 | 4 minute read

In this post I will demonstrate how we can find out which of SW3’s switchports PC1 is connected to in the topology diagram below. To make things more fun though I’ll begin my search from R1. Note that apart from R1 and PC1’s IP addresses, we do not have nor need any other information such as intermediate device IPs or port numbers in order to g...

Mastering EIGRP Metric Calculations

October 24, 2015 | 7 minute read

To properly administer an EIGRP network an admin really should know how EIGRP calculates and chooses best paths. If you’ve read any CCNA or CCNP resource you’re probably thinking “that’s easy, EIGRP uses Bandwidth and Delay by default”. And you’re completely right. However, how do these two pieces of information actually influence the resulting ...