March 23, 2016

Software-Defined WAN (SD-WAN)

Traditional WAN
Traditional WAN
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What is SD-WAN?

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 virtualization.

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.

 SD-WAN diagram

SD-WAN is WAN Virtualization

In the same way server virtualization abstracts the underlying physical hardware from the logical virtual servers that run on it, WAN virtualization 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 fiber) 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 is Intelligent

SD-WAN enabled networks are capable of monitoring WAN health and quality, then using these measurements to make intelligent decisions on application traffic flow. This arrangement has several key benefits:

  • Real time services like VoIP and video can be sent via the lowest latency link.
  • Intelligent failover and active/active configurations can be used to guarantee reliability even when a WAN link fails.
  • WAN connectivity can be added as and when required to provide agility.

Best of all, once configured, all traffic is managed automatically by the software defined rules set on the device – no human interaction is required.

 SD-WAN diagram2
 SD-WAN diagram3

SD-WAN is Centrally Managed and Monitored

Branch offices can be provisioned, monitored and managed centrally using a 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 centralized WAN monitoring and notifications providing a real time view of WAN health and globally branch office availability.

SD-WAN is Secure VPN

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.

In addition, SD-WAN provides the ability to offload public Internet traffic at the network edge, reducing traffic sent through the VPN.

 SD-WAN diagram4


The Peplink SD-WAN Advantage

Over the years, we have developed a potent combination of products and technologies that can help you build SD-WAN networks with unbreakable connection resilience, unmatched deployment flexibility, and intuitive ease of use.

 SD-WAN diagram5

A Leader in WAN Virtualization

Our product and technology focus has always been on WAN virtualization and the intelligent use of multiple WAN links at the same time to increase reliability and bandwidth whilst reducing costs. We have two key WAN virtualization technologies, Intelligent load balancing for Internet access and SpeedFusion VPN Bonding for secure branch to branch connectivity.

Vast Array of Mobile Products

Do more with Peplink SD-WAN – not just fixed branch office and datacenter connectivity, but mobile, outdoor, and body worn applications too.

Extend your enterprise WAN into company vehicles, temporary locations without fixed line connectivity, and create body worn personal area networks over cellular and Wi-Fi as WAN connectivity, all monitored, managed and controlled centrally and capable of using multiple WAN links at the same time.

 SD-WAN diagram4
 SD-WAN diagram6

InControl Central Management

InControl 2 is our cloud based device management, monitoring, and reporting system. With InControl 2, you can drastically reduce the complexity of managing and provisioning devices and secure WAN deployment for enterprise class branch networking.


FusionHub Virtual Appliance

FusionHub is the virtual SpeedFusion appliance from Peplink. With FusionHub, you can enable SpeedFusion at your cloud to securely connect your branch locations. FusionHub runs on many mainstream virtual machine software and hosting providers including Amazon Web Services, VMware, Citrix XenServer, Oracle VirtualBox, and Microsoft Hyper-V.