The document discusses how SD-WAN and NFV can help evolve networks to better support cloud applications. Traditional networks were designed for centralized applications but cloud applications now take indirect routes, hurting performance. SD-WAN uses virtualization to provide dynamic routing of traffic over multiple access types based on application needs. NFV allows virtual network functions like firewalls and WAN optimization at the network edge. This improves application performance and security for cloud-based traffic. Case studies show how SD-WAN and a software-defined cloud fabric can optimize traffic routing and access to cloud applications.