Software Defined Networks
Demands of businesses have changed and are continuously evolving and placing ever more complex demands on the corporate network. This complexity presents itself in many forms from the use of mixed technologies (vendors) to inconsistent features which were not consistently available due to individual vendors’ dynamics. Added to this was the need to deploy security and quality of service policies in order for applications and protocols to run effectively. In large organisations the drain on resource can and often runs into thousands of pounds in time and delays due to scripting or tools which can automate configuration changes. Without these tools the ability to scale will always be elusive and as application workloads change and demand for network bandwidth increases, network specialists are continuously firefighting an oversubscribed static network. Unfortunately, this is the way of traditional networks which have been statically provisioned in such a way that increases in endpoints services or bandwidth required major planning and design.
What Are Software Defined Networks?
There has been a lot of hype around SDN and its sweet spot lies in the ability to automate tasks. As traditional networks grow they become more complex and as a result of this ever more difficult to manage and maintain. SDN changes this equation in a very fundamental way, it is able to automate processes like provisioning, configuration and remediation via software. When you examine this concept as with Server Virtualisation it allows IT to align itself more readily with the business and respond almost instantaneously to its demands. IT departments are able to run leaner and focus on what’s important.
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