The Benefits a Company can Obtain from Using 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. The manufacturers and inventors of SD-WAN are targeting the business companies who are in need of such great product, for it is allowing the users and consumers the privilege of building a higher performance of WAN by enabling these business companies to partially or completely replace their private WAN connection technologies that are expensive, like for example a MPLS or multiprotocol label switching, into a leased lines that are inexpensive to be purchased. The various benefits which a business company can gain from using such great modernized products includes the chance and the privilege of delivering the services and applications required to perform business functions, to connect remote branch offices to data centers and the privilege of extending their computer networks over larger distances. The SD-WAN products is basically designed by the inventors to address problems in the network and any other operation challenges such as 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 jitter and packet loss. When using the SD-WAN product it can now functions by replacing and enhancing the branch routers that are traditional by using virtual appliances, which main uses is to offer an overlay of the networks through the use of an inexpensive consumer level internet links which is designed to act as a dedicated circuit and controlling the application-level policies. The software-defined networking in a wide area of network or SD-WAN product can be a virtual appliance or physical appliance and commonly, they are being placed by the users and consumers in cloud platforms, corporate data centers, small remote offices and branch offices. The various required characteristic of every SD-WAN products includes the ability to support VPNs or virtual private network and third party services like WAN optimization controllers, web gateways and firewalls, a simple interface that is very easy to manage and configure 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 SD-WAN products offers great features to their consumers and users and that includes QoS or quality of service, security, resilience, flexible deployment options, and troubleshooting and simplified administration.