3.11 Per APN Subscriber Session Limiting

The Policy DRA functionality provides configurable options for setting a maximum per IMSI per APN session limit, as well as options if the session limit is exceeded. These fields for configuring these options are found on the Policy and Charging, and then Configuration, and then Access Point Names screen.

The Maximum Allowed Sessions per IMSI field sets the maximum number of bound sessions allowed per IMSI for a specific APN. The maximum number of simultaneous sessions allowed across all APNs combined is ten.

The Per IMSI Session Exceeded Treatment field determines what action Policy DRA takes if the maximum number of bound sessions for an IMSI for a specific APN is exceeded. If Route is selected, the CCR-I message will be routed and the oldest bound session will be replaced. If Reject is selected, the CCR-I message will be rejected using the Diameter response code configured for SBR Error.

Note:

If OCDRA Only is selected in the Function field on the Access Point Names screen, the Maximum Allowed Sessions per IMSI and Per IMSI Session Exceeded Treatment fields are disabled.

Refer to Access Point Names elements for further information.