Time-of-day triggers are supported for Diameter Gx sessions. If time-of-day triggers are configured, the MPE device periodically examines policies and provisions the policies to enforcement points, even for connected subscribers.
For example, if a subscriber connects to a network during an off-peak period and continues to use the network into a peak period, the MPE device removes the off-peak policy rule at the enforcement point at the set time and installs the peak policy rule.
The MPE device evaluates policies every 15 minutes, that is on the hour, 15 minutes past the hour, 30 minutes past the hour, and 45 minutes past the hour. If a time period is changed, it can take up to 15 minutes for the change to take effect.
Time-of-day triggering must be enabled as part of MPE configuration. For more information, see the appropriate CMP User's Guide.