From a technological viewpoint the concept of SD-WAN is simple: the corporate devices at the extremity of the WAN channel traffic to other devices via multiservice or multivendor WAN networks which are centrally controlled, allowing network managers to configure and control traffic based on centralised security policies and rules.

Companies are looking for solutions that mean less financial outlay for head-office whilst at the same time simplifying operations. Given these considerations, SD-WAN can be seen as an alternative that can be integrated within the entire WAN architecture.