What is Idempotency? Idempotence is a term given to certain operations in mathematics and computer science whereby: an action which, when performed multiple times, has no further effect on its subject after the first time it is performed. In mathematics, idempotency can be seen when we multiply x by 1.

This post is part of the Network Automation 101 guide. The What Network Automation, as the name implies, is the process of automating networking tasks such as the configuration, management, testing, deployment, and operations of physical and virtual devices within a network.[1] Historically, networking tasks have been performed manually.

Introduction Whether you are running VNF’s in OpenStack or deploying virtual environments within GNS3 or EVE-NG, it is important to understand the different virtualization technologies, such as QEMU and KVM, even for us network engineers. The differences between QEMU and KVM are not always clear. I mean, are they

## What is NetDevOps? In a nutshell NetDevOps brings the culture, technical methods, strategies and best practices of DevOps to Networking.[^1] Therefore, let's first take a step back and answer - What is DevOps?

Introduction In this article I will share my top 5 Ansible tips and tricks, that I hope will save you time when automating your networks with Ansible. List Tasks Ansible provides a rather handy little option to print each of your tasks for your plays via the option --list-tasks. Certainly

What is a Port-Channel? Before we dive into vPC it is important to quickly review Port-Channels. A Port-Channel is a technology that provides a way to aggregate (bond) multiple interfaces together. Traffic is then loadbalanced across each of the connections. Port-Channels provide 3 key benefits, * Redundancy - Should one of

Introduction Welcome back to part 3. We will now look at an example workflow using the steps and Playbooks previously covered in parts 1 and 2. WorkFlow Our workflow will consist of the following steps: Figure 1 - WorkFlow overview. With regards to the Dev environment. This is our local

Introduction Welcome back. Previously we introduced ourselves to Ansible and Batfish, along with installing the necessary components. We will now look at an example topology, and also dive into the different Ansible modules that the Batfish role provides us. Note: The code for this guide can be found within the

Introduction Now I can say, from experience, that in my opinion one of the most frustrating admin tasks can be ACL updates on multi-tier firewall environments. Validation of the change and any troubleshooting if an ACL is still missed can be tedious and lengthy. Therefore, I'm delighted today