Summary

Recommendation ITU-T Y.3120 specifies the functional architecture, functional entities, reference points, and operational procedures, for the requirements and framework defined in Recommendation ITU-T Y.3113, based on the architecture defined in Recommendation ITU-T Y.2111. Meanwhile, Recommendation ITU-T Y.3113 specifies the use of flow aggregate (FA)-based scheduling and regulators at aggregation domain (AD) boundaries. Recommendation ITU-T Y.2111 specifies the resource and admission control functions (RACF) in support of end-to-end quality of service (QoS) and necessary transport functions in next generation networks (NGNs).