Traditionally most business applications were running on the private servers in the HQ, and MPLS that routes all traffics to the center site made this model quite efficient.

However, with adopting more and more SaaS and private/public cloud applications, we need new technologies that can efficiently and dynamically route different traffics either to the center site or to the cloud directly.

SD-WAN is the solution to make the complex routing scheme simple and intuitive. Based on traditional load balancing and failover functions, SD-WAN further improves user experience by focusing on interface and application quality.