Enterprises’ networking demands are growing in complexity, with different branches and lines of business requiring different application performance in the cloud. As organizations adopt “third-platform” technologies such as cloud, mobile, big data and analytics, they put increased strain on the network, is SD-WAN a business imperative? We speak to Song Toh, Vice President, Global Network Services, Tata Communications to provide key insights of the challenges faced by large organizations and how they can overcome them while managing their networks more effectively, helping them to remain competitive.