Archived; click post to view.
Excerpt: For so long, I’ve heard – as have many of you I’m sure – that GNS3, though a GREAT emulator for Cisco IOS software, is not practical for studying anything related to switching. Routing is handled just fine, but because of the proprietary ASICs in Cisco switches, it is not something that can be easily reverse-engineered, thus GNS3 cannot do it. After all, all routing is essentially done in software in GNS3. I actually wrote this article in part over a year and a half ago, but these concepts still hold up, and I decided to get it out of drafts…
Using GNS3 for Switching Labs
February 13, 2013 by 3 Comments
CCNA Datacenter
December 7, 2012 by 7 Comments
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Excerpt: I passed 640-916 – Introducing Cisco Data Center Technologies earlier this week. I was going to publish this post on they day of or after the pass, but unfortunately I was put out of commission by the winter bug that’s going around and did not get to give this post the attention it deserved. The first test in the CCNA Datacenter track, which is 640-911 – Introducing Cisco Data Center Networking, was a pretty straightforward test for someone with my background. This exam focused on network-specific topics, but obviously with an emphasis on data center. I want to briefly address a group…
The Anatomy of “Show IP Route”
July 18, 2011 by 9 Comments
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Excerpt: One of the most important skills to have when it comes to basic networking is the ability to look at a routing table and determine exactly where a packet will be routed when it comes to a router. Sometimes a routing table is relatively simple, and this process is easy. However, many times this is not the case. In large networks, especially networks that implement a hub and spoke design where core routers are often required to know hundreds of routes or more, this can be tedious. I’d like to discuss the routing table on a Cisco router, and identify…
T-Minus One Week!
October 30, 2010 by Leave a Comment
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Excerpt: That’s right, I’m taking the 640-802 exam from Cisco to attain my CCNA (Cisco Certified Network Associate) certification in one week! The last four weeks have been quite eventful, although I’m ashamed I didn’t really start studying REALLY hard until about 3 weeks ago. Regardless, I’ve learned a lot! I’ve been following the book “31 Days Before Your CCNA Exam”, which is essentially a daily planner for study topics regarding CCNA material. Since I’ve had a decent amount of exposure to most if not all of the topics involved in CCNA, a lot of the days were review, from a conceptual perspective….
