Hello, everyone!
What is the composition and meaning of the Alarm/Event ID?
A:
An alarm/event ID uniquely identifies an alarm or an event and contains eight bits in hexadecimal, as shown in the following figure.

The following table lists the meaning of each alarm/event field.
Number | Meaning |
|---|---|
(1) | Module ID |
(2) | Type |
(3) | Class |
(4) | SN |
Value and Meaning of the Major Fields of the Alarm/Event
The following table lists the value and meaning of the major fields of the alarm/event.
Field | Value | Meaning | Remarks |
|---|---|---|---|
Type | 0 | Communication alarms | Generated due to failure of the communication between NEs, between an NE and an NMS, between NMSs, or between control boards of an NE. |
1 | Service alarms | Generated due to service quality deterioration. | |
2 | Process alarms | Generated due to software or process error. | |
3 | Equipment alarms | Generated due to physical resource failure. | |
4 | Environment alarms | Generated due to the problems related to the place where the device is located | |
Class | 0 | Running | Generated in an unsolicited manner when the system runs in the normal state. |
1 | Fault | Generated when the system detects any fault. | |
2 | Recovery | Generated when a system fault is rectified. | |
3 | Security event (alarm) | Generated when the system detects any operation that affects system security. |
Alarm/Event Level
According to the fault severity:
The alarm is classified into five levels, critical, major, minor, warning, and cleared.
The event is classified into four levels, critical, major, minor, and warning.
Critical: Indicates that the fault occurs and the service is affected, which requires immediate troubleshooting.
Major: Indicates that the fault occurs and the service affecting condition is developed, which requires in-time troubleshooting.
Minor: Indicates that the fault occurs and the service is temporarily not affected, which requires quick troubleshooting to prevent a more serious fault that affects the service.
Warning: Indicates that the fault that potentially affects the service occurs, which requires further diagnosis (if necessary) to prevent a more serious fault that affects the service.
Cleared: Indicates that the fault is rectified and the device recovers, which requires no operation.
Thanks.