In general, and with some exceptions, ServiceNav unit service thresholds should follow the following syntax (called "Nagios Thresholds").
This syntax allows to define advanced thresholds allowing a much finer supervision of the equipment behaviour.
Status table
The following table describes the syntaxes to be used:
| Syntax | Produces an alert if ... | Example |
|---|---|---|
| 10 | 10, (outside the range {0 .. 10}) |  |
| 10: | < 10, (outside the range {10 .. ∞}) |  |
| ~:10 | > 10, (outside the range {-∞ .. 10}) |  |
| 10:20 | 20, (outside the range {10 .. 20}) |  |
| @10:20 | ≥ 10 and ≤ 20, (within the range {10 .. 20}) |  |
