Cloud Computing: Has software defined networking finally come of age?
June 22, 2015
Grazed from CloudTech. Author: David Auslander.
The first time I heard the acronym SDN was more than 10 years ago. At that time SDN was the cool way of saying “once the networking guys have racked, stacked and wired the switching and routing components we can install tools on a server and configure them through those tools from the comfort of the NOC”.
This was much more than just standard monitoring and management; we could setup whole networks and change them around, in software. But alas, this wasn’t really what we were hoping for and we would have to wait a number of years for the next advance…
The next evolutionary step was realized when VMware came out with the ability to create a virtual switch on top on their ESX hypervisor (Virtual Distributed Switching or VDS). Now we were talking slick. The ability to hang a switch without having to roll out physical hardware – amazing! Just provide some basic networking hardware at the perimeter, enough CPU to support your networking needs and start building networks. Great, but not quite good enough. Some of the questions left unanswered were:…
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