Werk #22476: pse_poe: report an unknown operational status instead of crashing

Component	Checks & agents
Title	pse_poe: report an unknown operational status instead of crashing
Date	Sep 22, 2026
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	3.0.0b1 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.5.0p15 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0p38 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

If a power sourcing device reported an operational status other than on, off or faulty, Checkmk could not read the pse_poe section at all. It failed with ValueError: <n> is not a valid PoeStatus, produced a crash report on every check cycle, and all POE services of that switch stopped being updated -- not just the port with the odd status.

The check already knew how to report such a value, but the section was rejected before it got there. An unknown status now reaches the check, which reports UNKNOWN and quotes the value the device sent, for example Device returned faulty data: nominal power: 50, power consumption: 20, operational status: 0. The other ports of the switch are monitored as before.

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