Cisco CSR1000V vs the Fabled IOU
While I love hardware, I really don’t like the space it takes up in my house, nor the noise it makes (rather ironic given the noise levels emanating from my network closet, but still…). To […]
gns3
GNS3 Network Simulation Guide
It seems it would be rude not to take a moment to give a plug to this new book, the GNS3 Network Simulation Guide that has just been published, written by Chris Welsh (@rednectarchris on Twitter). […]
Approaching Network Simulation in GNS3
I’ve been running IOS simulations in Dynamips for a number of years now, and over the last few years in both dynagen and the ever-expanding GNS3, I’ve found a few guidelines that have remained useful […]
Get A Lab And Be Error Free!
Today I’m going to discuss a misunderstanding I’ve encountered in many companies who are striving to reduce outages caused by network changes that go wrong. In a nutshell, here is is the fallacy in question: […]
GNS3 – Running A Single Router
GNS3 GNS3 really is a great tool, and I use it quite often to simulate routed networks. I also use it at times just to quickly validate syntax (assuming I have the right IOS versions […]
GNS3 and Service Compress-Config Problems
I’m a huge fan of GNS3 as a network simulator. While it’s not as CPU efficient as the fabled, not-public, nobody-has-a-copy-honest IOU (IOS-on-Unix) which obviously I know nothing about (how could I?), the graphical interface […]