[2.2.0] Checkmk Werk 16432 created: cisco_temperature: Handle Invalid Device Readings

Title: cisco_temperature: Handle Invalid Device Readings Class: fix Compatible: compat Component: checks Date: 1718280849 Edition: cre Level: 1 Version: 2.2.0p28 Cisco SNMP devices may report temperatures of "inf" or "-inf". According to CISCO-ENTITY-SENSOR-MIB, these values are not valid. Previously, Checkmk would treat non-finite temperatures as valid. This invalid data would be written to <code>tmp/check_mk/counters/</code>, which then caused the <code>Check_MK</code> service to become UNKNOWN. Furthermore, the services on the host would become stale. With this Werk, the problematic values not persisted. Only the affected service state will be UNKNOWN. If you are affected, you can delete the corrupted counter file in <code>tmp/check_mk/counters/&lt;host name&gt;</code>. To fix the readings reported by your device, please directly contact Cisco.