How to become a network engineer

how to become a network engineer

If you have arrived on this page then I would assume  you know what a network engineer is and would like to find out how to become a network engineer? If you are not sure what a network engineer is or does then the picture below explains it very well Picture courtesy of A network engineer is somebody who is responsible within a company for all the equipment that makes up the network. The network is what connects all the PC's and servers together, internet access, links to remote sites, wireless, adsl links etc etc. Now in a small company the network might just consist of one switch to connect 20 PCs, one server, and internet connection and maybe a wireless router. You would not need a full time … [Read more...]

f.lux – Software to make your life better

flux icon on rogers ccie blog

Ever notice how people texting at night have that eerie blue glow? Or wake up ready to write down the Next Great Idea, and get blinded by your computer screen? During the day, computer screens look good—they're designed to look like the sun. But, at 9PM, 10PM, or 3AM, you probably shouldn't be looking at the sun. f.lux fixes this: it makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day. It's even possible that you're staying up too late because of your computer. You could use f.lux because it makes you sleep better, or you could just use it just because it makes your computer look better. I have just installed this and an very impressed. At night it makes the … [Read more...]

Multicast for CCIE – Lesson #2 – Auto-RP

multicast auto rp rogers ccie blog

In this second post of my ccie blog series on Multicast we will be exploring auto rp. If you have not seen the first post in this series please take a moment to read Lesson #1 - Static RP We will be using the same topology below and I will be removing Static RP configuration and replacing it with Auto-RP The first step is to remove the static RP configuration on every router I will apply this command no ip pim rp-address on R2,4,5 & 6 Now if we do sh ip pim rp mapping on any router there will be no information. R2#sh ip pim rp mapping PIM Group-to-RP Mappings R2# R4#sh ip pim rp mapping PIM Group-to-RP Mappings R4# OK so now we do not have any RP information on any of the routers in the … [Read more...]

GNS3 100% CPU Usage – Just hit Enter!

gns3 100 cpu usage fix

If like thousands of network engineers around the world you use GNS3 you will have come across the 100% CPU Usage problem. We all know know how to set the idle-pc and most of the time that works, but there is also a few more things to try to get your CPU usage down. I had created a topology with 10 routers, which on my laptop running 8GB Ram should not have been a problem. I started up one router, let it settle down and then calculated the idle-pc - all good so far. When I started up the other 9 routers the CPU hit 100% and stayed there. This is because the routers were simply sat there awaiting an input from me. GNS3 100% CPU Usage - Fix Simply console onto each router and hit enter a couple of times. You will see your CPU … [Read more...]

Multicast for CCIE – Lesson #1 – Static RP

multicast for ccie static rp tutorial

One of the technologies that I never really mastered was Multicast. I knew the basics but didn't really know how to troubleshoot it. This is one of the holes in my knowledge that contributed to my last failure of the CCIE Lab Exam. So in order for that to not happen again I have decided to do a real deep dive into Multicast for CCIE candidates. I am going to be starting with the basics and building on the knowledge ensuring that I cover every detail of the technology. Now Multicast is not really that difficult to configure, there are only a handful of commands. The problem most people suffer with is that they don't know how to properly troubleshoot it and when it doesn't work, they have nowhere to go. So for this tutorial on the … [Read more...]