SNMP monitoring of optical parameter thresholds in OS9?

Hi everyone:

For some time now, I have been working on obtaining the optical parameters of SFP/SFP+ on a Dell S4048-ON switch with OS9 version 9.14(2.16) through SNMP queries, in order to graph them in tools such as MRTG or CACTI.

I have been able to find and graph OIDs for parameters such as "Tx/Rx power", "Temperature", and "Voltage" in the ”dellNetIfTransceiverDataTable" module (OID: 1.3.6.1.1.4.1.6027.3.11.1.3. 1) of the “DELL-NETWORKING-IF-EXTENSION-MIB” MIB.

However, I have not been able to find the OIDs for the warning/(critical thresholds for these parameters.

Do you know which MIB/OID can be used to obtain these thresholds?

Best regards and thanks in advance.