Cisco's SD-WAN vEdge Routers are routing components of the architecture that delivers the essential WAN, security and multi-cloud capability of the Cisco SD-WAN solution. Cisco SD-WAN vEdge routers are delivered as hardware, software, cloud or virtualized components that sit at the perimeter of a site, such as remote office, branch office, campus, or a data center. They participate in establishing a secure virtual overlay network over a mix of any WAN transports.