With this post, I am starting a series of episodes about Fabric Networking by Extreme Networks. Why Fabric Traditional networks could be difficult to scale and they usually suffer from spanning tree and/or broadcast issues. Fabric Networking allows you to scale on demand, create redundant paths for high availability …

Few weeks ago I watched this video on youtube https://www.youtube.com/watch?v=CZdwHPq-j-Q&ab_channel=WirelessLANProfessionals If you don't know who Peter Mackenzie is (not the actor) here his site http://mackenziewifi.com/index.php/about/ In this video I found a lot of important Wi-Fi topics that are often …

Recently a customer asked to enable the dhcp relay feature on Cisco Nexus 9300 switches, in order to use a remote dhcp server instead of a local one. After few days, they realized that booting an operating system in a PC through a PXE Server wasn't working anymore, because of the behavior of Cisco Nexus with DHCP …

Introduction Cisco Meraki dashboard is very useful because you can easily configure and monitor devices that are located everywhere and connected to Internet (specifically at Meraki cloud), only accessing a web portal. However, not having a CLI for the device configuration brings, in some cases, a bigger time spent to …

Introduction Ekahau Survey Pro is an excellent software tool for the analysis and design of wireless infrastructure. It is one of the most used tool for wireless surveys. It combines relevant measurement features with a quick and easy-to-use graphic interface. Compiling a report with the analysis results, is a relevant …

Upgrading Cisco WLC firmware could be very painful if you have to download new AP images through MPLS. At least, last time, for me, it was very painful. Recently we had to upgrade a Cisco 5520 WLC from v8.10.121 to 8.10.130. The WLC had hundreds of APs connected in FlexConnect mode, distributed over dozens of branches. …