Werk #19962: Fix UCS Bladecenter special agent crash on Cisco Business Edition rack servers

Component	Checks & agents
Title	Fix UCS Bladecenter special agent crash on Cisco Business Edition rack servers
Date	May 11, 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 2.5.0p8 Not yet released Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT 2.4.0p33 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

The UCS Bladecenter special agent failed to monitor Cisco Business Edition (BE-prefix) rack servers such as the C220M5. Two issues caused this:

• The hardware model detection regex did not include the BE prefix used by Cisco Business Edition rack servers (e.g. BE6H-M5-K9). These devices were not recognized as C-series hardware, so the agent queried SNMP entity classes that only exist on B-series (blade chassis) hardware, resulting in missing services.
• When an unsupported SNMP class such as equipmentFanModuleStats was queried on rack hardware, the agent crashed in debug mode instead of skipping the unavailable class.

Both issues are resolved. The model regex now correctly identifies BE-prefix models as C-series hardware, and missing SNMP classes are skipped gracefully even in debug mode.

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