ITU-T Q.3303.3 PDF

This Recommendation provides the stage 3 specification of the protocol at the interface between a policy decision physical entity (PD-PE) and a policy enforcement physical entity (PE-PE). The functional requirements and the stage 2 specifications for this interface are contained in clause 9.2 of [ITU-T Y.2111] and in [b-ITU-T Q-Sup.51].

This interface is used to control policy enforcement functions in the transport devices, including QoS resource control (e.g., packet marking, filtering and policing), gate control, and network address and port translation/network address translation (NAPT/NAT) traversal control. The PE-PE may reside in any injection node across access networks, core networks and the network border gateway.

This Recommendation defines:

– The information to be exchanged between the PD-PE and the PE-PE over the Rw interface.

– An Rw interface definition based on the Diameter protocol.