It's only been a week since GNS3 1.0 was released and it's already been updated to 1.1 so in this post I have Ubuntu 14.04 LTS with the latest updates and its time to set up GNS3. GNS3 is an open source tool that helps network professionals run a virtual network right on their computer, GNS3 is not a simulation program …

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I brought this topic up in March of this year (See original post) but I wanted to re-post it to add some information because as of today this was your last day to pass the older CCNA exams. Cisco has a refreshed all the CCNA Routing and Switching exams. That includes the ICND1 (640-822), the ICND2 (640-816), and the …

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I think we knew it was coming at some point and Cisco has recently announced a refresh for the 640-822 (ICND1), 640-816 (ICND2) and the all in one 640-802 (CCNA) the last day to take these tests and get certified are September 30th of 2013. You will notice some old references no longer mentioned on this refresh, so …

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Since network technicians work with IP addressing, it is hugely important to understand subnetting. I remember back when I started to learn subnetting it was confusing and I wanted nothing to do with it. The thing that made me change my mind was after I understood it and how important it is. In the "Cisco …

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network_switch Working towards the CCNA Cisco talks about a hierarchical network there are three layers to this design. Access Layer, distribution layer and the core layer. Each of them have their own set of functions and is also considered to be a best practice when the network continues to grow and for redundancy …

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