46Default command level2: System levelParametersitem-number: Specifies a reaction entry ID in the range of 1 to 10.jitter-ds: Specifies the destination-to-source jitter of each probe packet as the monitored element (orperformance metric).jitter-sd: Specifies source-to-destination jitter of each probe packet as the monitored element.threshold-type: Specifies a threshold type.accumulate accumulate-occurrences: Specifies the maximum number of threshold violations in theoperation. The value is in the range of 1 to 14999 for the UDP jitter operation, and 1 to 59999 for thevoice operation.average: Specifies to check the average one-way jitter.threshold-value: Specifies threshold values in milliseconds.upper-threshold: Specifies the upper threshold in the range of 0 to 3600000.lower-threshold: Specifies the lower threshold in the range of 0 to 3600000. It must not be greater thanthe upper threshold.action-type: Specifies what action to be triggered. The default action is none.none: Specifies the action of only displaying results on the terminal display.trap-only: Specifies the action of displaying results on the terminal display and meanwhile sendingSNMP trap messages to the NMS.Usage guidelinesOnly successful probe packets are monitored. Failed probe packets are not counted.Examples# Create reaction entry 1 for monitoring the average destination-to-source jitter of UDP jitter packets. Setthe upper threshold to 50 milliseconds, and the lower threshold to 5 milliseconds. Before the NQAoperation starts, the initial state of the reaction entry is invalid. After the operation, the averagedestination-to-source jitter is checked. If it exceeds the upper threshold, the state of the reaction entry isset to over-threshold. If it is below the lower threshold, the state is set to below-threshold. Once the stateof the reaction entry changes, a trap message is generated and sent to the NMS. system-view[Sysname] nqa entry admin test[Sysname-nqa-admin-test] type udp-jitter[Sysname-nqa-admin-test-udp-jitter] reaction 1 checked-element jitter-ds threshold-typeaverage threshold-value 50 5 action-type trap-only# Create reaction entry 2 for monitoring the destination-to-source jitter of UDP jitter probe packets. Setthe upper threshold to 50 milliseconds, and the lower threshold to 5 milliseconds. Before the NQAoperation starts, the initial state of the reaction entry is invalid. After the operation, thedestination-to-source jitter is checked against the threshold range. If the total number of thresholdviolations exceeds 100 (included), the state of the entry is set to over-threshold. Otherwise, the state of theentry is set to below-threshold. Once the state of the reaction entry changes, a trap message is generatedand sent to the NMS. system-view[Sysname] nqa entry admin test