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Werk #19281: cisco_fantray: Fix discovery failure when entPhysicalName is empty

Component Checks & agents
Title cisco_fantray: Fix discovery failure when entPhysicalName is empty
Date Mar 13, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.5.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.4.0p25
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

The cisco_fantray check uses entPhysicalName from entPhysicalTable as the service item name for discovered fan trays. Some devices return an empty entPhysicalName, which previously caused discovery to fail due to invalid empty items. As a result, some fan trays might not have been discovered or displayed.

This check now falls back to the end OID when entPhysicalName is empty but a matching row exists in entPhysicalTable. Entries without a matching row in entPhysicalTable continue to be ignored as before. With this fix, fan trays that previously lacked names will now be discovered correctly without requiring any user intervention.

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