Learn More about SD-WAN The SD-WAN or software-defined networking in a wide area of network, is basically a product produced by the use of the two most important technologies of all time, such as the internet and computer, and its primary function is to simplify the operation and management of a wide area network by decoupling or separating the network hardware from its control mechanism. One of the consumer target of the inventors of SD-WAN are business or commercial companies, and this certain technology is allowing their consumers and users to build higher performance of wide area network by enabling these businesses to either partially or wholly replace their expensive private WAN connection technologies like MPLS or multiprotocol label switching, and that is by using lower cost leased lines. The benefits that a business company can obtain from using such great technology are the privilege of extending their computer networks over a larger distance, to deliver the applications and services required to perform business functions and to connect remote branch offices to data centers and vice versa. The products that are called as SD-WAN are designed by its manufacturers to address operational challenges or any other network problems that are existing, and some of the examples for these includes packet loss, service outage, network congestion, lower latency requirements of modern operations like video conferencing, streaming media, virtualized applications and desktops, and VoIP calling, bandwidth requirements for featuring high-definition video, difficulty and expensive costs of expanding WAN capability, difficulties in management of network and troubleshooting and jitter. In using the SD-WAN it enhances and replacing the traditional branch routers by using virtual appliances, and these appliances can control the application-level policies and offer an overlay of the networks with the use of a less-expensive consumer level internet links which acts as a dedicated circuit. SD-WAN products can either be a virtual appliance or physical appliance and most likely they are being placed in branch offices, small remote offices, cloud platforms and corporate data centers. The required characteristics of every SD-WAN products includes the ability of doing dynamic path selection which can be used for resiliency purposes or load sharing, the ability of supporting multiple connection types like frame relay, MPLS or multiprotocol label switching and higher speed LTE or long-term evolution wireless connections, the ability to support VPNs or virtual private network and third party services like WAN optimization controllers, web gateways and firewalls and a simple interface that is very easy to manage and configure. The features offered by these products includes security, quality of service or QoS, flexible deployment options, simplified administration, troubleshooting, and resilience.