An era when business also requires a sense of speed. In the network as well, there is a need for rapid addition of bases associated with business expansion and M & A, and a flexible configuration that responds to ever-changing situations.

In addition, the ICT environment surrounding networks is changing. The amount of communication has increased dramatically due to the expansion of SaaS and private cloud usage represented by Office 365. Due to work style reforms, remote work (utilization of mobile) in business has also increased dramatically. Security measures based on internal and external boundaries have reached their limits, and their role in the network itself is changing.

It was created to ensure "immediateness," "flexibility," and "expansion" while satisfying quality, cost, and security requirements for issues that are difficult to deal with with conventional WANs such as center-based centralization. The next-generation WAN is "SD-WAN".

How SD WAN works