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  1. Grid: From the Grid tab, select the Grid Manager tab, and then select Grid Properties -> Edit from the Toolbar. Member: From the Grid tab, select the Grid Manager -> Members tab -> member, and then click the Edit icon.
  2. In the Grid Properties or Grid Member Properties editor, click Toggle Advanced Mode, and then select the SNMP Threshold tab.
  3. Complete the following in the Response Policy Zones Hit Rate Configuration section of the SNMP Threshold tab.
    • RPZ Hit Rate: Click Override to override the inherited settings, and specify the following:
      • Trigger %: Enter the Trigger value between 0 and 100. If the RPZ hit rate equals the Trigger value, the appliance logs a syslog entry and — if configured to do so — sends an SNMP trap and an email notification. The default Trigger value is 10%.
      • Reset %: Enter the Reset value between 0 and 100. If the RPZ hit rate equals the Reset value, the appliance logs a syslog entry and — if configured to do so — sends an SNMP trap and an email notification, to notify that the RPZ hit rate has gone back to an acceptable level. The default Reset value is 2%.
    • Interval: Enter the time interval that determines when the appliance starts calculating the RPZ hit rate. You can enter a value between 1 and 86400. The default value is 10 seconds. At the end of each interval, if the number of incoming queries equals or exceeds the Minimum query value, the appliance calculates the RPZ hit rate and if the RPZ hit rate exceeds the Trigger value, the appliance sends notifications and continues to send notifications at the end of subsequent intervals, until the RPZ hit rate equals the Reset value.
      Note that the appliance calculates the RPZ hit rate at the end of each Interval or when the number of incoming queries reach the Maximum query value, whichever comes sooner.
    • Minimum query: Specify the minimum number of queries received between the RPZ hit rate checks. The default value is 1000. The appliance calculates the RPZ hit rate when the number of incoming queries equals or exceeds the Minimum query value at the end of the Interval. If the total number of incoming queries is less than the Minimum query value, the appliance skips the RPZ hit rate check and the query count continues to cumulate into subsequent intervals until the Minimum query is met.
    • Maximum query: Specify the maximum number of queries received between the RPZ hit rate checks. The default value is 100000. When the number of incoming queries equals or exceeds this value, the appliance calculates the RPZ hit rate and does not wait for the expiration of the Interval.

4. Save the configuration and click Restart if it appears at the top of the screen.


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