Summary

Recommendation ITU-T Y.3820 specifies the software-defined networking (SDN)-based quantum key distribution network (QKDN) interworking control between QKDN providers. It provides an overview of the role of SDN control for the interworking between QKDN providers, the functional requirements for an SDN controller for interworking, the functional entities of an SDN controller for interworking, the interfaces of an SDN controller for interworking, the operational procedures of an SDN controller for interworking, as well as any security considerations.