4 identical UPSs - 3 detect, 1 doesn't

Hi guys,

We have four Eaton 9PX2200RT UPS units in our computer room. I’ve verified all are running the same UPS firmware, all four network management cards are of the same revision, and all four cards are running the same firmware version. Three of the UPSs detect and show up in LibreNMS with all of the expected health graphs (battery level, voltage, etc.) but one UPS shows as a generic device with only basic graphs and no health section. Beyond checking the SNMP configuration on the UPSs and the firmware levels, I’m not really sure where to go on this.

Here is some info I’ve collected from our LibreNMS installation. Can anybody point me in the right direction?

validate.php output:

discovery.php problem UPS:

discover.php working UPS:

poller.php problem UPS:

poller.php working UPS:

Thank you!

Get the sysObjectID from both and compare.

snmpget -v1 -c YOURCOMM -M /opt/librenms/mibs YOURDEVICE SNMPv2-MIB::sysObjectID.0

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They return different results:

Problem UPS:
SNMPv2-MIB::sysObjectID.0 = OID: joint-iso-ccitt.1027424058.858993459.858862387.1932753687.867384187.321073970.556931619

Working UPS:
SNMPv2-MIB::sysObjectID.0 = OID: SNMPv2-SMI::enterprises.705.1

I’m not sure what this means, do I need to contact the vendor to find out why two supposedly identical units are behaving differently?

Thank you!

Wow, that objectid is totally wrong.

Yes, you need to contact vendor. Maybe the snmp card needs to be replaced.

Thanks much for the guidance. I’ll update for documentation purposes once I get a resolution.

Just to follow up: Eaton sent us a new management card. After installing/configuring it is detected properly in LibreNMS. Thank you for the help!