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Configuring a Policy and Charging Enforcement Function Profile for Junos OS Subscriber Aware Dynamic Policies

When a policy and charging enforcement function (PCEF) profile is configured with dynamic policy control, the policy and charging rules function (PCRF) can both provision policy and charging control (PCC) rules and activate PCC rules that are predefined on the Junos Subscriber Aware PCEF.

Before you configure a PCEF profile for dynamic policies, you must do the following:

  • Configure a Diameter Gx profile.

  • (Optional) Configure service data flow (SDF) filters.

  • (Optional) Configure a PCC action profile.

  • (Optional) Configure PCC rules, PCC rulebases, or both.

Note:

You can add PCC rules or PCC rulebases to a dynamic PCEF profile without being in maintenance mode. To make other changes to a dynamic PCEF profile, you must be in maintenance mode.

Note:

When a PCEF profile includes application-aware PCC rules, you must also include a default Layer 3 or Layer 4 wildcard PCC rule to ensure that the default charging characteristics are applied to unmatched subscriber traffic without dropping that traffic. For example, the default Layer 3 or Layer 4 wildcard PCC rule prevents traffic based on DNS queries from being dropped. In addition, the PCEF profile that includes application-aware PCC rules must also include a wildcard Layer 3 or Layer 4 PCC rule at a lower precedence.

To configure a PCEF profile for dynamic policies:

  1. Specify a name for the PCEF profile.
  2. Specify one or more PCC rules and a precedence for each rule for dynamic policy control. A lower precedence value indicates a higher precedence.
    Note:

    If the profile includes application-aware PCC rules, you must also include a wildcard Layer 3 or Layer 4 PCC rule at a lower precedence.

  3. Specify one or more PCC rulebases for dynamic policy control.
    Note:

    Make sure that the PCC rules and PCC rulebases configured in a PCEF profile do not overlap.

  4. Specify a Diameter Gx profile.

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