SD-WAN – or should we say WAN4.0?

Is the current buzzword "SD-WAN" really new, or is it actually a progression of the WAN technologies we all know and love? Is it going to be a revolution or…

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What is the difference between a virtualised network and network virtualisation?

With the advent of compute virtualisation, it was necessary to extend the physical network from outside the host into the virtualised environment within the host. This is achieved with the…

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Three Bottlenecks of WAN – Bandwidth, Latency and Cost

There are three bottlenecks to Wide Area Networks (WANs) that don't exist in other environments, and these are Bandwidth, Latency and Cost. (And in true three pronged problem fashion, you…

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