SNMP CPU index changes every time you install or uninstall a printer

Source: Microsoft Support

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If you use SNMP to query the CPU load using hrProcessorLoad (OID 1.3.6.1.2.1.25.3.3.1.2), the CPU index changes every time you install or uninstall a printer and restart the SNMP Service.

The SNMP Service first enumerates printers and then processors. While enumerating the devices, it gives the next available index to the device.

1.       Configure the SNMP Service to send SNMP traps.

2.       Configure the SNMP Management Host to receive this trap, evaluate the content and if needed adjust the expected indexes. The way how this can be accomplished, depends on the SNMP Management Host.

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