The document discusses the business value of software defined networks (SDN) using OpenFlow. It argues that today's proprietary network leads to high costs and slow innovation, while SDN provides standardization, scale, and efficiency. Independent software vendors can provide virtual appliances on commodity servers to offer services like firewalls and WAN optimization. The document also describes the Corsa data plane products and how they support OpenFlow 1.3 to enable SDN solutions with high performance and throughput. Real-world use cases demonstrate bandwidth on demand and ACL bandwidth brokering in the WAN.