Y.2320 and Y.2321 provides requirements and architecture for virtualization of control network entities in NGNe. The container-based network entity, making full use of the advantages of cloud native technology and realizing the rapid construction, operation and elastic expansion of telecommunication network, can evolve the next generation network (NGN) furthermore. This Recommendation provides the requirements of container-based network entities, requirements of container-based network entities management system, and requirements of infrastructures of NGNe to support container-based network entities