I am attempting to poll the temperature of an HP ProCurve 3500YL switch remotely using SNMP.

Looking at this MIB, it appears that the following OIDs:

hpCpuTemperature            1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.6
hpPowerSupplyTemperature    1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.7
hpChassisTemperature        1.3.6.1.4.1.11.2.3.7.11.17.7.1.1.1.8

Within the 'hpProcurveSysMib' should provide the data I need. However, whenever I attempt to access these OIDs, I receive the response:

SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1.1.6 = No Such Object available on this agent at this OID

Further investigation reveals that the switch in question does not appear to implement the parent hpProcurveSystem MIB:

SNMPv2-SMI::enterprises.11.2.3.7.11.17.7.1.1 = No Such Object available on this agent at this OID

Does anyone know of an alternative MIB implemented by the 3500 that will allow its temperature to be polled automatically?