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When AMS receives an unsolicited SNMP trap from an agent, it locates the appropriate alarm template for the trap-type object that is defined in the device's MIB. If the alarm template is not available, the alarm is not logged.
To resolve this problem you need to add the device's MIB to the MIB Pool on the management server. The MIB contains the trap definitions for traps sent from the device. If the trap-type object is undefined by AMS, it cannot resolve the type of alarm received from the trap object identifier (OID), and the alarm is unknown. See MIB Tools for information on compiling MIBs and adding MIBs to the MIB Pool.
If you add a new device to your network, you must add the MIB to the MIB Pool. If the SNMP agent is a proxy agent hosted on a station and the software is updated, you need to update the MIB in the MIB Pool.
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