Software-Defined WAN

Enterprises today relentlessly pursue new methods to transform and virtualize their traditional IT environments, and increasingly they’re seeing real-world success extending the benefits of virtualization—automation, improved security, and agility—to network and application delivery.

The software-defined wide-area network (SD-WAN) is at the forefront of this transformation. SD-WAN is a targeted, software-defined approach to the traditional wide-area network. Where WAN connections are often manually configured between basic links, SD-WAN’s aim is to simplify WAN provisioning and extend operations over the public internet, cloud express routes, and more. While SD-WAN isn’t a new technology, it’s well-defined with more standards and deployments than other SDN technologies.

Over the past few years, there’s been significant proliferation of SD-WAN and its popularity shows no signs of waning. In fact, research from Gartner predicts over 40% of enterprises will adopt SD-WAN by the end of 2019, while IDC predicts the market is poised to reach a value of $4.5 billion in 2020.

Know more: Software-Defined WAN

The benefits of SD-WAN in tightening up security and centralizing management and control have been driving factors in its uptake, along with substantial cost savings when compared with legacy WAN networks like MPLS. Some IT professionals initially dismissed the bold claims around SD-WAN, but they are fast waking up and realizing it unlocks a new era of flexibility and bespoke networking.

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