Archive : Free-tools

“Vyatta is  a software-based, open-source, network operating system that is portable to standard x86 hardware as well as common virtualization and cloud computing platforms. By deploying Vyatta, users benefit from a flexible enterprise-class routing and security feature set capable of scaling...

What should you study? How should you study? What are the hot areas on the Exam? What are the Exam question formats? What should you watch for? What if you need to reschedule the Exam? What can you bring with you? This are the questions that Laura Chappell will try to answer in the 4 free live webinars...

Cisco Visual Network Index (VNI) is an interactive tool that can help you to forecast and analyze the growth and use of IP networks worldwide. Cisco VNI intiative includes distinct elements to provide a comprehensive view of the changing IP network landscape: Cisco VNI Forecast is a model for the estimation...

After my last post, some readers were asking what tool did I used for testing the QoS and how satisfied I’m with it. The name of the tool is Packgen. According to its developer developers, “Packgen is a simple network packet generator handling diffserv markers, useful for testing network...

Maybe one of the biggest loss of mine when I switched from PC to Mac, was the Microsoft Visio is not available for any other platform than Windows OS. Now, I’m not a big fan of Microsoft products, but I have to admit that they have some good products, and one of this is Visio. Like it or not, more...

OK, you catch me as this is not from Cisco, but is related to networking and security, so I believe it fit in the idea of this blog. What I’m talking about here?! Well, let’s assume that you are the IT guy of one small business or even your home network, and like all of us, you want what’s...

Now and then, especially when you expect less, the network crashes or encounter an issue and then you had to troubleshoot. Sometime the problem is right there, you can see it and it’s easy to fix, but in other cases you’ll have to put an eye in the packets that are traveling through it and...

NetFlow is a network protocol developed by Cisco Systems to run on Cisco IOS-enabled equipment for collecting IP traffic information. It’s proprietary and supported by platforms other than IOS, such as Juniper routers or FreeBSD and OpenBSD. Cisco routers that have the Netflow feature enabled generate...