We Don’t Need No Stinkin’ Flags! ACI External EPG Subnet Flags…Just for Fun!

In ACI, the L3Out is a veritable Howl’s Moving Castle[i] of configuration whose ultimate goal is to deliver external connectivity to the endpoints in the ACI fabric. All told, I think there are something in excess of twenty steps to go from zero to full connectivity between an outside subnet and internal EPG members. That includes configuring all of the pre-requisites needed to support a L3Out, all of the steps that enable internal EPGs to be able to share their own subnets, and all the contract config between EPGs. Representing the whole thing is the external EPG, which might possibly be the single most complicated object in the whole curious and delicate complex.

Upgrading IOS-XE on Catalyst 9000 series Switch Stack

This article was originally written by A.J. Murray and first appeared on his blog noblinkyblinky.com I recently had to put together a Catalyst 9300 stack of switches and upgrade the switch stack, so I thought I’d document the process and share it. The process is very similar to stacking other switches, if you’re familiar withContinue reading “Upgrading IOS-XE on Catalyst 9000 series Switch Stack”

The Importance of TAC along with some SSO Info

This article is by Andy West and first appeared on his blog, blueboxredbox.com. For those that have worked with me this formatting approach is either going to make you smile or make you cringe with memories of overly complex email updates. OPENING Someone once asked me why I seem to enjoy dealing with TAC, TechContinue reading “The Importance of TAC along with some SSO Info”

Welcome to the Art of Network Engineering Podcast!

We’re excited to bring you new and exciting content! We’ll talk about what’s hot in the industry, focus on technologies, train you and help prepare you for your next cert exam, job interview, or just to level up in your career as a network engineer. Stay tuned here and make sure you follow us onContinue reading “Welcome to the Art of Network Engineering Podcast!”