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Info

This article provides details about errors with SNMP values that result in increased usage percentages.

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titleLAST TESTED ON CHECKMK 2.0.0P1Applicable to all Checkmk versions


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titleTable of Contents

Table of Contents

Problem

A POE-enabled network interface shows an excessive usage percentage.
e.g. POE usage (6000W/1800W): : 333% (warn/crit at 90.0%/95.0%)

Reason

Some hardware vendors violate the SNMP RFC and output milliwatts instead of watts for pethMainPseConsumptionPower.

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Those are then wrong, of course, because if your input data is faulty, the result of your calculation will also be faulty.

Solution

As the bug lies within the SNMP implementation of the affected device, the hardware vendor must fix this bug in the firmware.
Please open a ticket with the vendor and ask them to fix the bug.

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