In terms of functionality, alarm messages are classified into the five types described in following table.
Type |
Description |
|---|---|
Communication alarm |
Indicates that a fault occurs in the process associated with the data transfer. For example, an alarm is generated due to the communication failure between the NEs, between the NE and the OS, or between the OSs. |
QoS alarm |
Indicates that the QoS decreases. For example, an alarm is generated due to congestion, performance decrease, high resource occupancy, or bandwidth shortage. |
Error alarm during data handling |
Indicates that an error occurs when the software or process handles data. For example, an alarm is generated due to the software error, memory overflow, version mismatch, or abortion of the program. |
Environment alarm |
Indicates that the environment cannot meet the requirements for the equipment to operate normally. For example, an alarm is generated due to improper temperature, humidity, or ventilation. |
Equipment alarm |
Indicates that a fault occurs in physical resources, including power supply, fan, processor, clock, and I/O interfaces. |