How Nagios thresholds work

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In general, and apart from some exceptions, ServiceNav service thresholds should adhere to the following syntax (referred to as "Nagios Thresholds").

This syntax makes it possible to define advanced thresholds allowing for a much more highly tuned monitoring of device behaviour.

Status table

The following table describes the syntax to be used :

Syntax Generates an alert if... Example
10 < 0 or > 10, (outside the range {0 ... 10}) C:e4058e35a8616d20371467c90bfe4086
10: < 10, (out of range {10 .. ∞}) C:49d02f1c5f96ee8f726b161c5fc32f04
~:10  > 10, (outside the range {-∞ .. 10}) C:2dbe43b381fefe0675bb011b70adf572
10:20 < 10 or > 20, (out of range {10 ... 20}) C:3ea15a2e127aa97d64048de39fcf1566
@10:20 ≥ 10 and ≤ 20, (inside the beach {10 .. 20})

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