Have you thought about seeing or visualizing OSPF, EIGRP, BGP, VRF and more on your network with a simple, color-coded view on your computer screen? Recently I shared with you a network visualization tool called nuVML that can be used [...]
In the recent years, virtualization technology has advanced to the point that nearly everything can be virtualized. Started from server and storage virtualizations, to Software Defined Networking (SDN), the entire datacenter technology is trending to the direction of moving away [...]
NetApp is a company makes storage applications based on commodity hardware and proprietary software that aims making managing vast amount of storage easy. The entire storage system is optimized from the OS level to its management interface. Because of its [...]
The 2nd Edition of Cisco VIRL Book is available now! It is a refreshed and updated version of the original VIRL BOOK published in 2016. Since then, a lot of changes and enhancements have been made with Cisco VIRL. The [...]
A collection of Cisco VIRL Installation Troubleshooting Common Issues. More will be added over time. Cisco VIRL Installation Troubleshooting Common Issues KVM-ok Check Failed When deploying VIRL as a virtual machine, in our case we imported an “OVA” image to [...]
You can run the Cisco VIRL lab on a workstation or laptop. There are two options - installing VIRL as a native OS, or installing VIRL as a virtual machine running on top of your existing OS. In this tutorial [...]
The Pro version of VMware Fusion has more features and greater flexibilities compared to the standard version. When working with VIRL, the Pro version provides a GUI interface for creating virtual networks required by VIRL, whereas Fusion does not. There [...]
When it comes to implementing remote access VPN, there are many options. Check out my article on deciding among PPTP vs L2TP/IPSec vs SSTP vs IKEv2 vs OpenVPN. In that article, I listed a few things to look for when [...]
When implementing remote access VPN, people often get confused by the protocols and types of VPN available and which one they should pick. What are the differences between PPTP vs L2TP/IPSec vs SSTP vs IKEv2 vs OpenVPN? Which one is [...]
Wireless network technology keeps evolving. With the latest 802.11ac Wave 2, Gigabit wireless across your network isn’t something out of reach. It is not a new concept but it has become real since the wireless network throughput matches or even [...]