Software-defined wide area network (SD-WAN) or software defined WAN, is an application of software defined networking (SDN) technology, which is applied to traditional WAN connections. The application enables reliable, secure and performance specific enterprise network connection, including data centers and branch offices, which are separated over large geographic locations. The global SD-WAN market has gained traction in recent years due to low cost incurred by it compared with traditional WAN management.
Legacy WAN solutions are not sufficient to protect network from increasing threats and overall control. Enterprise IT is continuously updating its network infrastructure to reduce the chances of malicious activities such as unauthorized access to business-critical data, and ensure business continuity. Apart, IT administrators also require real-time network visibility to track network activity from end to end.
SD-WAN solutions help in monitoring and measurement of network traffic, providing deep visibility to IT department into WAN and allowing them to quickly pinpoint a security attack. It enables enterprises to create certain priority policies in order to inform the network about how certain types of traffic should be treated.
SD-WAN solutions shift traffic management and monitoring from physical devices to applications, providing greater agility and flexibility at reduced cost. In addition, it eliminates the need for manually configuring traditional routers in branch locations and enables network administrators to remotely program the edge appliance through a central controller.
The global SD-WAN market is gaining interest due to increasing adoption of cloud-based technologies, demand for higher bandwidth by service providers, cost-effective WAN management solutions, and greater flexibility and visibility in network management. SD-WAN products and services vary from vendor to vendor, many of which offers hybrid WAN dynamic traffic routing over both private and public links, such as long term evolution (LTE), multi-protocol label switching (MPLS) and broadband.
Geographically, North America has been the largest market for SD-WAN, where the U.S. has been the largest contributor to the regional market. China has been the major market in Asia-Pacific. In Europe, Germany is expected to be the major contributor to the regional market.
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