This Recommendation specifies a quality of service (QoS) control architecture and requirements
covering aspects, such as resource reservation, admission control and gate control, for
Ethernet-based IP access networks. Based on the resource and admission control functions (RACF)
as defined in [ITU-T Y.2111], this Recommendation provides details specific to Ethernet-based IP
access networks. An Ethernet-based IP access network is an IP access network which comprises the
Ethernet aggregation network, access nodes, and edge nodes, and may also include the IP
aggregation network.
In this Recommendation, the Ethernet aggregation network supports VLANs as defined in
[b-IEEE 802.1Q] and [b-IEEE 802.1ad]. Note that the QoS mechanisms for the last mile user access
segment are MAC technology-specific and as such are out of the scope of this Recommendation.
ITU-T Y.2112-2007 Referenced Document
ITU-T Y.1231-2000 IP Access Network Architecture Series Y: Glabal Information Infrastructure and Internet Protocol Aspects Internet Protocol Aspects - Architecture Access Network Capabilities and Resource Management Study Group 13*， 2024-04-19 Update
ITU-T Y.2091-2007 Terms and definitions for Next Generation Networks (Study Group 13)
ITU-T Y.2111-2006 Resource and admission control functions in Next Generation Networks Study Group 13
ITU-T Y.2112-2007 history
2007ITU-T Y.2112-2007 A QoS control architecture for Ethernet-based IP access networks Study Group 13