Summary

The evolved next generation network (NGN) adopts the technology of network function virtualization. Recommendation ITU-T Y.2322 focuses on the functions, functional entities and reference points of virtualized control network entities management and orchestrator (VCNMO) and its subcomponents in the architecture of virtualization of control network entities (VCN). The Recommendation defines the functional architecture of VCNMO and specifies the related reference points, including the orchestrator, the VCN manager (VCNM) and the virtualized infrastructure manager (VIM) for VCN. The architecture design of this Recommendation fulfills the requirements proposed by Recommendation ITU-T Y.2320. In this Recommendation the high level description of functions and reference points related to orchestrator, VCNM manager and VIM are consistent with the functions and reference points standardized in Recommendation ITU‑T Y.2321.