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Tag Archives: Primer

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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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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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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