Summary

The orchestration in next generation network evolution (NGNe) is of great significance, because it takes into consideration the coexistence and corporation of traditional networks, such as next generation networks (NGNs) and networks enabled by software-defined networking/network function virtualization (SDN/NFV). Recommendation ITU-T Q.3058 specifies the mapping of reference points to interfaces in the signalling architecture of orchestration in NGNe, provides the signalling requirements of the interfaces and establishes the protocols used for interfaces. The descriptions of the requirements, the functional architecture and the reference points of orchestration in NGNe are aligned with Recommendations ITU-T Y.2323 and ITU-T Y.2324.