| Possible values | Names | Descriptions |
|---|---|---|
| 1 | Emergency | system is unusable |
| 2 | Alert | action must be taken immediately |
| 3 | Critical | critical conditions |
| 4 | Error | error conditions |
| 5 | Warning | warning conditions |
| 6 | Notice | normal but significant condition |
| 7 | Informational | informational messages |
| 8 | Debug | debug-level messages |