• UTM

    What is it? A unified Threat Management device is the swiss army knife of network …

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Recent Posts

Vagrant – Configuring the Vagrantfile

Building the Vagrantfile In the last post we looked into how to install Vagrant, took at brief look the Vagrantfile, a look at atlas, brought up a box and finally destroyed it. In this post we’ll look at some of the more advanced ‘Vagrantfile’ configurations to help you make the most out …

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Ansible – Basic Lab Build

Building the Sandbox Following on from our introduction to Ansible post, here we will start to take a practical look at using Ansible. Our first step and the purpose of this post will be to build a basic sandbox environment. A video walkthrough has been included at the end of this post Pre-requisites As with …

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Vagrant – First Steps

Installing Vagrant and Virtualbox This post will cover how to get started with Vagrant from downloading the software to launching and destroying your first box. Pre-Requisites No specific pre-requisites are specified though if you have never heard of Vagrant you may want to take a look at our Introduction to …

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Introduction to Ansible

What is it? Ansible is an open source IT automation tool for application deployment, configuration management and device orchestration. Ansible have two offerings ‘Ansible Core’ and an enterprise level offering called ‘Ansible Tower’ which is a licensable product. Ansible Core however, remains open source and will remain the focus for …

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Cumulus Networks

Cumulus Networks provide a popular Network Operating System (NOS) for bare metal switches. What separates Cumulus from other NOS companies is that Cumulus is not purely focussed on the large SDN Data Center. As well as offering the standard L3 fabric and overlay options, Cumulus also allows you to build …

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Introduction to Vagrant

What is it? Primarily used for building environments to allow development and testing. Vagrant uses a central repository of pre-configured systems that can be downloaded and stood up as necessary. This enables you to build environments without wasting time building base OSs and installing common applications. Vagrant on its own is …

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What is SDN?

Software Defined Networking (SDN) means different things to different people. Some of the key words often associated with SDN are Automation, OpenFlow, Network virtualization and Overlay networking. Lets look at each of these in turn and see how they fit with SDN. Automation Managing large networks has always been painful, …

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North, South, East & West

You will often hear or see the term North-South vs East-West when looking at networks. Let’s take a quick look at what people mean when they use these terms. North-South North South traffic is often referred to as traffic than needs to traverse into or out of your network, So …

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Cloud as a Service

Although I’m no fan of anything/everything as a service (XaaS), mainly due the fact that it has been overused by marketing teams to define whatever they are trying to promote as-a-service. The original three as-a-service definition Software (SaaS), Platform (PaaS) and Infrastructure (IaaS) provide a clearer understanding of what most …

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Cisco Nexus ACI – Hardware Data Sheet

NOTE: All data contained on this page was taken directly from the vendors product data sheet. No validation of accuracy is offered for figures stated regarding bps or pps. The information provided is solely for a point of reference and should only be taken on a provided ‘as is’ basis …

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Cisco Nexus 9K – Hardware Data Sheet (NX-OS)

NOTE: All data contained on this page was taken directly from the vendors product data sheet. No validation of accuracy is offered for figures stated regarding bps or pps. The information provided is solely for a point of reference and should only be taken on a provided ‘as is’ basis …

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Virtualization

What is it? So to start with virtualization goes way back so not to waste anyone’s time the virtualization we are talking about here is based on x86 architecture. Wikipedia defines virtualization as In computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, …

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Whitebox Switching

Whitebox switches have started to become more popular within large Data Centers. and if you look at the increase in Network Operating System Vendors it would seem it’s set to continue. What is it? Many people are familiar and associate the term whitebox with computer hardware such as servers, personal …

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The Public Cloud

What is it? The public cloud is IaaS and PaaS provided by a managed service provider. The two largest are Amazon AWS and Microsoft Azure, however their are literally thousands of smaller offerings available, from pretty much every vendor on the planet. Why use a public Cloud? With any business …

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Cloud Computing Overview

What is it? Marketing at its best. The term ‘Cloud’ has been used for years to represent any black box service that you as an individual did not want, or need to know. For example in network diagrams your service provider or the Internet has always been denoted as a …

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