PCRFs

The Policy and Charging > Configuration > Policy DRA > PCRFs screen contains the list of PCRF Peer Nodes that are to be used when a subscriber binding is created at this site. New bindings created at this Policy and Charging DSR are distributed evenly among the configured PCRFs.

PCRFs are responsible for authorizing and making policy decisions based on knowledge of subscriber resource usage and the capabilities allowed by the subscriber’s account. All policy requests for a given subscriber must be routed to the same PCRF. Policy and Charging dynamically assigns subscribers to PCRFs using a load distribution algorithm, and maintains state about which subscribers are assigned to which PCRF. The relationship between a subscriber and a PCRF can change any time the subscriber transitions from having no Diameter policy sessions to having one or more Diameter policy sessions. After a policy session exists, all policy sessions for that subscriber are routed to the assigned PCRF.

The fields are described in PCRFs elements.

Note:

For details about configuring Peer Nodes, refer to the Diameter User Guide and Diameter online help.

On the Policy and Charging > Configuration > Policy DRA > PCRFs screen on the SOAM, you can perform a variety of actions:

• Filter the list of PCRFs, to display only the desired PCRFs.
• Sort the list entries by column in ascending or descending order by clicking the column heading. By default, the list is sorted by PCRFs in ascending numerical order.
• Click Insert.

  The Policy and Charging > Configuration > Policy DRA > PCRFs [Insert] screen opens and allows the user to add a PCRF. See Inserting PCRFs. If the maximum number of PCRFs (5000) already exists in the system, the Policy and Charging > Configuration > Policy DRA > PCRFs [Insert] screen will not open, and an error message is displayed.

• Select a PCRF in the list, and click Edit.

  The Policy and Charging > Configuration > Policy DRA > PCRFs [Edit] screen opens and allows the user to edit the selected PCRF. See Editing PCRFs.

• Select a PCRF in the list, and click Delete to remove the selected PCRF. See Deleting a PCRF.