A Software-defined Wide Area Network (SD-WAN) is a virtual WAN architecture that allows enterprises to leverage any combination of transport services – including MPLS, LTE and broadband internet services – to securely connect users to applications.
An SD-WAN uses a centralized control function to securely and intelligently direct traffic across the WAN. This increases application performance and delivers a high quality user experience, resulting in increased business productivity, agility and reduced costs for IT.
*Why do you need SD-WAN?
Times have changed, and enterprises are using the cloud and subscribing to software-as-a- service (SaaS). While users traditionally connected back to the corporate data center to access business applications, they are now accessing those same applications in the cloud. As a result, the traditional WAN is no longer suitable mainly because backhauling all traffic – including that
destined to the cloud – from branch offices to the headquarters introduces latency and impairs application performance. SD-WAN provides WAN simplification, lower costs, bandwidth efficiency and a seamless on-ramp to the cloud with significant application performance especially for critical applications without sacrificing security and data privacy.