1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Overview
7 Functional requirements
7.1 General requirements
7.2 SDN application layer
7.3 SDN control layer
7.4 SDN resource layer
7.5 Multilayer management functions
8 Environmental considerations
9 Security considerations