Issue: We were seeing high processor utilization on a Windows 2003 Service Pack 2 domain controller. Various processes were reporting high cpu usage including the MOM agent. The application event log was filling with a warning for event id 3006 from the source EvntAgnt. Clearing the application event log showed that these were appearing at a rate of about 600 per second.
Resolution: Restart of the SNMP Service on the system resolved the issue with no additional event id 3006 records being created from the EvntAgnt source.