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4. Save the configuration.

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Adding Trap Receivers

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You can enable the NIOS appliance to send traps to specific management systems using either SNMPv1/SNMPv2 or SNMPv3, or all versions of SNMP. You can then add management systems that are allowed to receive traps from the appliance. Note that you cannot enable both SNMPv1/SNMPv2 and SNMPv3 on the same trap receiver. The appliance sends traps when certain events occur. You can enable SNMP traps and add trap receivers to the Grid. You can also override the Grid settings at the member level.
To enable the appliance to send traps and to add trap receivers, do the following:

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    • Root File System: The percentage of the root file system ("/") that is currently in use. The default Trigger value is 85%, and the default Reset value is 70%.
    • Swap Usage: The percentage of the swap area that is currently in use. The factory default trigger value is 50% and the factory default reset value is 30%. The swap usage threshold varies based on the appliance models. Grid Manager displays zero for both the trigger and reset values indicating the optimized usage of platform specific default values. For information about available memory on each appliance model, see Table 39.1 .
    • Reporting: The number of reports created on the system that can trigger an SNMP trap. The default Trigger value is 85, and the default Reset value is 70. Note that the maximum number of reports supported per Grid is 300. This field is displayed only when you have configured a reporting server.
    • Reporting Volume: The percentage of data transmissions to the reporting server. The default Trigger value is 80%, and the default Reset value is 71%. This field is displayed only when you have configured a reporting server.
    • Threat Protection Dropped Traffic: The percentage of packets dropped based on the threat protection rule configuration. The default Trigger value is 90%, and the default Reset value is 70%. This field is displayed only when Threat Protection licenses are installed on the appliance. When the percentage of Threat Protection dropped traffic exceeds the Trigger value or drops below the Reset value, the appliance sends an SNMP trap and an email notification — if configured to do so. For information about setting SNMP traps and email notifications, see Setting SNMP and Email Notifications.
    • Threat Protection Total Traffic: The percentage of total traffic received (dropped and passed packets) on the external interfaces. The default Trigger value is 90%, and the default Reset value is 70%. This field is displayed only when Threat Protection licenses are installed on the appliance. When the percentage of total Threat Protection traffic exceeds the Trigger value or drops below the Reset value, the appliance sends an SNMP trap and an email notification — if configured to do so. For information about setting SNMP traps and email notifications, see Setting SNMP and Email Notifications.

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