There is a notion in the market that SD-WAN is a cheaper technology than existing MPLS networks. This is not the case, as Software-Defined architectures cost the same as an existing MPLS network, however, clients are able to get much larger bandwidth on the SD-WAN topologies. Bandwidth is one of the main drivers why clients look at SD-WAN topologies as clients have the ability to get route internet-based traffic over these large bandwidth pipes instead of expensive MPLS links.
Another reason why clients look at SD-WAN Topologies is the manageability of their own WAN architecture. With a central provisioning system, clients have the ability to make critical changes to multiple devices in a single instance through this interface. In the past with MPLS architectures, clients did not have much control in managing their WAN where ISP’s would lock routers down and clients did not have the ability to make changes. With SD-WAN Architectures client have the ability to make changes and prioritize applications over their SD-WAN devices. It also gives clients visibility where they are able to see application performance, bandwidth consumption in real-time.