Proprietary Requirement OEMs Operators Agility Faster time to new features, releases, etc. Faster time to new revenue, TTM, etc. Programmability Tailor infrastructure to individual operator needs Tailor services to individual end- user needs Migration Enables customers systematic path to adopt open architecture Begin realizing benefits of SDN sooner for specific use cases Policy-based Readily exploit intelligence to deliver value Offer flexibility to address a wide- range of end-user needs Modularity Enable focus on value-added network applications Adopt Best of Breed network applications Abstraction Accelerate integration of new hardware platforms Achieve multi-vendor interoperability Simplification Simpler to develop, enhance, and Simpler to deploy, manage, and upgrade Scalability and Stability Table stakes Openness Vendor-neutral, Open ecosystem