ITU Q.3303.1:2012 Resource Control Protocol No. 3 - Protocol At The Interface Between A Policy Decision Physical Entity (Pd-Pe) And A Policy Enforcement Physical Entity (Pe-Pe): Cops Alternative Version 2 Describes the resource control protocol No. 3 (rcp3) COPS profile at the Rw interface, i.e., between the policy decision physical entity (PD-PE) and the policy enforcement physical entity (PE-PE) in t