Summary

Recommendation ITU-T Y.3150 describes how network softwarization, whose usefulness is globally recognized, and its most typical substantiation, network slicing, contribute to International Mobile Telecommunications-2020 systems. Recommendation ITU-T Y.3150 explores network slicing from two viewpoints: vertical and horizontal aspects. Recommendation ITU-T Y.3150 further describes network slicing for mobile fronthaul and backhaul, introduction to advanced data-plane programmability and capability exposure. These descriptions are expected to lead to the detailed study of these technical characteristics.

This edition contains: i) a change in the basic model, which contains software-defined networking, network functions virtualization, cloud computing and other technical environments; and ii) security considerations for network slicing. In addition, information on hierarchical orchestration is included.