The following events can be generated by NMIS, because NMIS is handling events statefully, the Event is cancelled by a "Cancelling Event".
| Event | Type | Stateful | Cancelling Event |
| Interface Down | Fault | Yes | Interface Up |
| Node Down | Fault | Yes | Node Up |
| Node Failover | Fault | No | N/A |
| Node Reset | Fault | No | N/A |
| Proactive Calls Utilisation | Threshold | Yes | Proactive Calls Utilisation Closed |
| Proactive CPU | Threshold | Yes | Proactive CPU Closed |
| Proactive Dead Modem | Threshold | Yes | Proactive Dead Modem Closed |
| Proactive Interface Availability | Threshold | Yes | Proactive Interface Availability Closed |
| Proactive Interface Discards Input Packets | Threshold | Yes | Proactive Interface Discards Input Packets Closed |
| Proactive Interface Discards Output Packets | Threshold | Yes | Proactive Interface Discards Output Packets Closed |
| Proactive Interface Error Input Packets | Threshold | Yes | Proactive Interface Error Input Packets Closed |
| Proactive Interface Error Output Packets | Threshold | Yes | Proactive Interface Error Output Packets Closed |
| Proactive Interface Input NonUnicast | Threshold | Yes | Proactive Interface Input NonUnicast Closed |
| Proactive Interface Input Utilisation | Threshold | Yes | Proactive Interface Input Utilisation Closed |
| Proactive Interface Output NonUnicast | Threshold | Yes | Proactive Interface Output NonUnicast Closed |
| Proactive Interface Output Utilisation | Threshold | Yes | Proactive Interface Output Utilisation Closed |
| Proactive Memory Free | Threshold | Yes | Proactive Memory Free Closed |
| Proactive Modem Utilisation | Threshold | Yes | Proactive Modem Utilisation Closed |
| Proactive Reachability | Threshold | Yes | Proactive Reachability Closed |
| Proactive Response Time | Threshold | Yes | Proactive Response Time Closed |
| Proactive Temp | Threshold | Yes | Proactive Temp Closed |
| RPS Fail | Fault | No | N/A |
| SNMP Down | Fault | Yes | SNMP Up |