Table of Contents - Q.3921 (01/2026) - Test framework for software-defined networking multi-controller inter-networking using a communication segment

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	Challenges of multi-controller network
7	Overview of multi-controller SDNs
8	Interaction between Controllers
	8.1	Connection schemes between SDN controllers
	8.2	SDN northbound interface balancing scheme
9	SDN multi-controller compatibility testing
	9.1	Test scenario for system start
	9.2	Test scenario for the system in operation
10	Multi-controller SDN testing structure and functional elements
	10.1	Control server
	10.2	Test module A
	10.3	Test module B
11	Methods for testing multi-controller SDNs
	11.1	With a proxy-server
	11.2	With the master Controller
	11.3	With the orchestrator
Appendix I – Sample model network for multi-controller SDN segment testing
	I.1	Service plane
	I.2	The virtual data plane and control plane with multi-controller area
	I.3	The data plane
Bibliography