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Software-Defined Wide Area Networking (SD-WAN) is a revolutionary way to approach the simplification of branch office networking and assure optimal application performance by using centrally controlled and managed WAN virtualisation.
Unlike traditional WANs, SD-WAN delivers increased network agility and cost reduction. Software-Defined WAN has its roots in Software-Defined Networking (SDN), the underlying principle of which is to abstract the network hardware and transport characteristics from the applications that use the network.
Businesses and government agencies are adopting SD-WAN at a rapid pace to replace legacy WAN running on MPLS. In the mainstream enterprise market, SD-WAN is typically used to add broadband, DSL, or mobile links to their existing connection. It enables organisations to increase the bandwidth of existing MPLS connections while providing a failover backup, all at substantial cost savings compared to directly upgrading the MPLS line to the same standard of bandwidth and reliability. Other typical features include WAN optimisation, application-specific network rulesets, and centralised control of branch network via cloud.
In the same way server virtualisation abstracts the underlying physical hardware from the logical virtual servers that run on it, WAN virtualisation is where a logical WAN connection (to either the Internet or between branch offices) can use multiple underlying connectivity technologies (like xDSL, MPLS, cellular and fibre) at the same time but presents this connectivity to users and applications as a single direct to Internet or secure site to site connection.
SD-WAN enabled networks are capable of monitoring WAN health and quality, then using these measurements to make intelligent decisions on application traffic flow.
Once configured, all traffic is managed automatically by the software-defined rules set on the device – no human interaction is required.
Branch offices can be provisioned, monitored, and managed centrally using an SD-WAN controller that gives network administrators full control over their wide area networks and remote devices using a single interface.
Complex VPN configurations connecting thousands of branch offices together securely (using whatever connectivity is available at each location) can be created and deployed automatically, with centralised WAN monitoring and notifications providing a real-time view of WAN health and globally branch office availability.
By using encrypted VPN, branch offices gain secure, local network access to cloud resources. SD-WAN makes these branch office VPN faster and more affordable by combining the bandwidth of multiple connections into a single logical WAN connection.
Besides, SD-WAN provides the ability to offload public Internet traffic at the network edge, reducing traffic sent through the VPN.
Peplink’s SD-WAN technologies give you a wide range of options. Use our link load balancing technology to prioritise VoIP traffic over the lowest latency links. Guarantee the session integrity of sensitive applications such as point-of-sale or credit card transactions using Hot failover. Stream HD videos and have smooth videoconferences using SpeedFusion VPN technology. Use your commodity links to offload your for bulk traffic to the public Internet, while saving your critical traffic for private links.
Using InControl 2, our powerful SD-WAN controller, you can easily perform a multitude of tasks from any browser window. Set up a star, mesh, or point-to-point VPN with just a couple of clicks. Configure groups of devices at once to save time and schedule automatic firmware updates for your devices.
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