EcoStruxure IT forum
A support forum for Data Center Operation, Data Center Expert, and EcoStruxure IT product users to share knowledge on installation, configuration, and general product use.
Posted: 2022-10-10 09:27 AM
Odd issue we are seeing. StruxureWare Data Center Expert 7.9.1.83 cannot communicate with UPS Network Management Cards (v2 and v3) via SNMPv3 when using SHA/AES. NMC software versions are: (NMCv2: 7.0.8; NMCv3: 2.2.1.1). If we change the settings for SNMPv3 to MD5/DES (on the NMC and DCE), then DCE is able to successfully scan the UPS/NMC. SNMPv1 works as well. I have been unable to find a documented bug. We are able to query these devices successfully via SNMPv3 SHA/AES for trending data (Cacti).
Other devices like PDUs, IRCs and Galaxy VS UPS systems don't seem to be having any trouble. Any ideas?
Posted: 2022-10-10 11:49 AM
Hi Shaun, thanks for responding,
- Configuration was working previously
- Cards were upgraded via Struxureware DCE
- Prior version of NMC3 was 2.0.0.5. Not sure about NMC2, but it was in the 7.x train
- Yes, rebooted DCE as a troubleshooting step.
- I have also tried removing and re-adding NMCs using SNMPv3. The device is successfully added to DCE, but is unrecognized and labled as "SNMP Device". Of course I can always change SNMP settings to correct this (switch to SNMPv1 or SNMPv3 w/ MD5/DES) , but it doesn't follow our security guidelines.
Posted: 2022-10-12 04:26 AM
Hi,
Just checking in so I'm not leaving you in the dark - I'm trying to reproduce this locally. It's certainly a supported configuration that's expected to work - obviously monitoring our own network cards is most the point of the platform.
If I can't replicate the same I may ask you to get in touch with your local support so we can try to capture the network traffic and see what's missing - but I have the same software and the same cards as you, so I'm hopeful I should be able to replicate.
Posted: 2022-10-12 09:26 AM
Appreciate the update. I'll update this post if I come across any information that might help troubleshoot.
Posted: 2022-10-14 07:47 AM
Hi @Phlerm,
Just wanted to check one detail - if you login to the NMC on the UPS, can it still see the UPS status correctly?
Showing up as "SNMP Device" when they're re-discovered is an odd detail that may indicate they have the wrong firmware loaded (for example, PDU firmware on a UPS), and we just want to rule that out.
Thanks,
Shaun
Posted: 2022-10-14 10:32 AM
Yes, the card can see the UPS correctly.
Just to clarify, a NMC will only show up as "SNMP device" if I add it w/ SNMPv3 SHA/AES. If I then change the configuration of SNMP on the NMC and DCE to SNMPv3 MD5/DES, the card will be scanned correctly and the model etc updates as expected.
Posted: 2022-10-20 12:03 PM
We noticed that DCE 7.9.2 was released yesterday. Just for good measure, we updated DCE to 7.9.2 today. We are still seeing the issue w/ SNMPv3 using SHA/AES.
Thanks!
Create your free account or log in to subscribe to the forum - and gain access to more than 10,000+ support articles along with insights from experts and peers.