Summary

Recommendation ITU-T Y.2111 specifies the functional architecture and requirements for the resource and admission control functions in next generation networks, which may involve a variety of access and core transport technologies and multiple domains. The RACF provides real-time application-driven and policy-based transport resource management in support of end-to-end quality of service (QoS), gate control, network address translation, and traversal of remote network address translators. The RACF is not service-specific. Services can make use of RACF whether the IP multimedia subsystem is involved or not.

In particular, this edition includes extensions to Recommendation ITU-T Y.2111 (2006) to address issues related to multicast in support of IPTV services, nomadicity, and interactions between CPE/CPN and RACF.