scope:

This Recommendation specifies the high-level and functional requirements of QoS assurance for quantum key distribution networks (QKDN). This Recommendation covers:

- Introduction of QoS assurance for quantum key distribution network.

- High-level requirements of QoS assurance for quantum key distribution network.

- Functional requirements of QoS assurance for quantum key distribution network.

NOTE 1 - Some requirements in this Recommendation refer to QoS information (i.e., key length, key amount, node pair names or IDs, etc.) provided by entities within a quantum key distribution network (QKDN) for QoS assurance purposes. The information provided under a requirement will depend on the use case and/or the implementation. How to specify the information included is outside the scope of this Recommendation and the selection made in the implementation will not prevent a claim of conformance with this Recommendation.

NOTE 2 - Requirements in this Recommendation are limited to a single QKDN.