Software-Defined Wide Area Networks (SD-WAN) is a software approach managing Wide-Area Networks, which offers ease of deployment, central manageability and reduced costs, and it can improve connectivity to the Internet and the cloud.

A key application of SD-WAN is to allow companies to build higher-performance WANs using lower-cost and commercially available Internet access, enabling businesses to partially or wholly replace more expensive private WAN connection technologies such as MPLS.

In order to fully utilize SD-WAN function, users need to make changes to their network topology and perform configuration in CE On-Premises UI.

Cloud Edge WAN supports three modes: PPPoE, DHCP, and Static. If you want to enable SD-WAN, you need to have two WAN links (WAN1 and WAN2/LAN1) ready. See the diagram below: