Cloud computing is no longer a new buzzword, and in fact, cloud computing is approaching to its next evolution: cloud-first strategy. By definition, it specifies all the business networking activities are conducted in the cloud first. Cloud-first strategy makes practical senses for global enterprises with branches worldwide so that employees can synchronize from mobile devices and remote locations. In fact, organizations with initiatives for cloud-first strategy are requiring a virtualized, automated, and agile network orchestration to easily manage their IT infrastructure, in order to manage the increasing traffics on the cloud and their applications. Thus, SD-WAN has become the optimal choice as it also comes with the capability in securing business applications.
More and more Cloud-centric enterprises are realizing that SD-WAN and DPI together prove to be a powerful combination for not only delivering application-based network performance and for improving efficiency, but also for cutting costs and for increasing business sustainability.
SD-WAN has been one of the hottest and fastest-growing technologies in the networking industry for the past years, and the main reasons include ease of deployments, simplified maintenance and management, and the cost reduction. For communication service providers (CSPs), SD-WAN presents a revenue opportunity as they have been encountered with increasing demands for SaaS (software as a service) applications and cloud-based services, which have become a burden for their bandwidth and traffic routing. SD-WAN provides the agility and flexibility to enable CSP with the enhanced bandwidth to meet the pace of today’s networking demands.
As the business world has moved towards further digitalization, the competitiveness of enterprises heavily relies on application serviceability and network performance. In fact, it is the application awareness or even intelligence that drives SD-WAN to be more flexible than conventional WAN architecture in terms of visibility and control to set priority over the network. With application awareness, SD-WAN effectively reduces bandwidth burden and OPEX/CAPEX for IT management.
There is no doubt that SD-WAN has been one of the most preferred networking technology for enterprises and service providers, and in fact, the growth has expanded not only for office settings, but also in outdoor environments. In recent years, various sectors including entertainment, public events, medical and logistics, have installed A.I. (Artificial Intelligence) and IoT (Internet of Things) hardware and software to enhance user experience, and these require better outdoor connectivity.
Over the past 15 years we've witnessed a gradual change in branch WANs requirements. Whereas most branch offices, more often than not, were connected to the rest of the business through an MPLS circuit or VPN, we are seeing more and more network architectures being updated either by way of increasing more capacity to the existing WAN circuit or by introducing an Internet connection to the branch WAN.
SD-WAN is becoming the most anticipated WAN Services today. According to the latest Gartner Report on WAN Edge Infrastructure, in next 5 years more than 90% of WAN edge infrastructure will be based on vCPE platform or SD-WAN versus traditional router for managing network connectivity and resources from distributed branches to data center and the cloud.