Log levels
Logs are classified into eight severity levels from 0 through 7 in descending order. The information center outputs logs with a severity level that is higher than or equal to the specified level. For example, if you specify a severity level of 6 (informational), logs that have a severity level from 0 to 6 are output.
Table 22: Log levels
Severity value | Level | Description |
|---|---|---|
0 | Emergency | The system is unusable. For example, the system authorization has expired. |
1 | Alert | Action must be taken immediately. For example, traffic on an interface exceeds the upper limit. |
2 | Critical | Critical condition. For example, the device temperature exceeds the upper limit, the power module fails, or the fan tray fails. |
3 | Error | Error condition. For example, the link state changes. |
4 | Warning | Warning condition. For example, an interface is disconnected, or the memory resources are used up. |
5 | Notification | Normal but significant condition. For example, a terminal logs in to the device, or the device reboots. |
6 | Informational | Informational message. For example, a command or a ping operation is executed. |
7 | Debugging | Debug message. |