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 Introduction
7 Overview
8 Objectives
9 High-level capabilities
10 Requirements
11 High-level architecture
11.1 Application layer
11.2 SDN control layer
11.3 Resource layer
11.4 Multi-layer management functions
11.5 Interfaces
12 Environmental considerations
13 Security considerations
Appendix I – Areas for further considerations in SDN standardization
I.1 Interworking
I.2 Verification of SDN applications
I.3 Adaptation to large-scale networks
I.4 Design of resource abstraction
I.5 Virtualization of network elements
I.6 Multiple-level of programmability
I.7 Programmatic extension in resource layer
Bibliography