Meter Template Adaptive Quota Management Reservations Properties

Adaptive Quota Management (AQM) reservation properties determine how meter reservations are handled during quota authorization for meters impacted by services that use the Balance Accuracy Feedback (BAF) feature, and optionally, the AQM feature.

AQM Reservations Properties lists the AQM reservations properties.

Table 1. AQM Reservations Properties
Property Description
Maximum Reservation Time (seconds) The maximum number of seconds for which a reservation is valid. If AQM is enabled, this value is used to shape the quota size and validity time.
Maximum Per Context Reserved Amount The maximum amount of this meter, periodic meter entry or meter, that can be reserved by any one service context per session. This property allows providers to allow allocating a maximum percentage of the remaining asset to a session.
Maximum Total Reserved Amount The maximum amount that can be reserved against this meter or meter by all service contexts in a session. This value acts as a credit limit that rejects any usage that exceeds this total reserved amount.
Adaptive Threshold Scale Factor This property is used with AQM and the Balance Threshold Feedback (BTF) feature, which calculates the available quantity until the next threshold is reached.

The scale factor controls the distance before a threshold at which the quota drops from default authorization or reauthorization values to the minimum authorization or reauthorization values. For example, a value of 2 makes it appear that subscribers are two times closer to the threshold than they are. This causes AQM to start issuing smaller quotas twice as early as it otherwise would, and it does so more gradually because it has more time to slow down.