Direct PCC rule activation by a PCRF

A policy and charging rules function (PCRF) server can directly activate a policy and charging control (PCC) rule that is configured on the router. To activate a PCC rule, the PCRF sends a Rule-Install-Name AVP over the Gx interface to the MX Series router. PCC rules define the treatment to apply to subscriber traffic (for example, setting the maximum bit rate) based on the application being used by the subscriber (for example, Facebook) or based on the Layer 3 and Layer 4 service data flow information for the IP flow (for example, the source and destination IP addresses).