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 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. Through the use of the SD-WAN, basically it replaces and enhances the traditional branch routers through the use of virtual appliances and the appliances can now control the level of the application policies and can offer an overlay of the networks by using an inexpensive consumer level internet links that will act as a circuit that is dedicated. 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 characteristics of an SD-WAN products which is a requirement for the inventors and manufacturers includes 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, a simple interface that is very easy to manage, and configure the ability of doing dynamic path selection which can be used for load sharing and resiliency purposes. The great common features that are being offered by the manufacturers to their probable clients and consumers includes flexible deployment options, and troubleshooting, simplified administration, includes QoS or quality of service, resilience, and security.