The rising threshold is a value which specifies that any enabled rising threshold events are to be generated when the value of the currently available leases reaches the rising threshold value via a returning of a lease to the range. The number of available leases is reported in rbnDhcpRangeThresholdAvailable. A rising threshold event is either a notification or a log message or both. Rising threshold events are enabled if either or both of rbnDhcpRangeThresholdRisingSendTrap and rbnDhcpRangeThresholdRisingLogMessage are true. Note, this is a rising threshold, so a rising threshold event will only be triggered on a transition of the value of rbnDhcpRangeThresholdAvailable increasing from (rbnDhcpRangeThresholdRisingThreshold-1) to rbnDhcpRangeThresholdRisingThreshold.