The document discusses the key requirements for successful network function virtualization (NFV) deployments. It emphasizes that NFV solutions need to provide: performance at scale through optimized hardware; ease of deployment through cloud-native software on commercial off-the-shelf servers; and security across infrastructure, orchestration, and devices. The document also stresses the importance of multi-vendor collaboration, a focus on practical use cases like universal customer premises equipment, and an agile development approach to overcome challenges in bringing NFV from labs to large-scale production networks.