A Software Defined Wide Area Network (SD-WAN) is a virtual WAN architecture that enables companies to securely link users to applications using any combination of transport services like MPLS, LTE, and broadband internet services. A SD-WAN uses a central control mechanism to direct traffic across the WAN safely and intelligently.
A SD-WAN uses a central control mechanism to direct traffic across the WAN safely and intelligently. This improves the efficiency of the application and gives consumers a high degree of experience, which increases company competitiveness, resilience and reduces IT costs.
Times have changed, businesses use cloud and software-as-a-service (SaaS) subscription facilities. As users are historically linked back to the corporate data centre, they now have access to the same cloud application. The conventional WAN is no longer suitable primarily because redirection of all traffic from branches to headquarters-including to the cloud-contributes to latency and decreases application efficiency. SD-WAN offers WAN simplification, reduced costs, bandwidth efficiency and a seamless cloud ramp with significant performance for application particularly in crucial applications.