Summary

Orchestration in next generation network evolution (NGNe) is of great significance, because it takes the coexistence and incorporation of traditional networks such as next generation networks (NGN) and networks enabled by software-defined networking/network function virtualization (SDN/NFV) into consideration. Recommendation ITU-T Y.2324 provides the general functional architecture of the orchestration in NGNe, specifies its functional entities and establishes the functionalities of these functional entities, as well as providing descriptions of all reference points of orchestration in NGNe.