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SNMPWALK issues finding correct data.

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.

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mccartneyk_apc
Crewman
Crewman
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SNMPWALK issues finding correct data.

This was originally posted on APC forums on 3/11/2014


When I use snmp walk on our AP8865 it shows the load in Amps for 6 different banks (rPDULoadStatusLoad.1-6) When I look on the actual unit or on the web interface it says there are only 3 banks.  Also each of the 6 entries in snmpwalk after devided by 10 show on average about 8 amps per bank. The web monitor shows no more than 5 for each of the 3 banks. How can I putt the correct data to create a historical graph with it. Thank you.

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BillP
Administrator Administrator
Administrator
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256

Re: SNMPWALK issues finding correct data.

This reply was originally posted by Angela on APC forums on 3/11/2014


Hello,

To begin, for AP8XXX series Rack PDUs, you should ideally be using the .iso.org.dod.internet.private.enterprises.apc.products.hardware.rPDU2 subtree. The rPDU subtree is used for older AP7XXX series Rack PDUs. You may find some supported values but they are only there as to not break customer's polling completely.

Anyway, I set up an AP8865 simulator. I see what you're talking about when I use rPDULoadStatusLoad. What it is providing to you is the phase load - for the 3 phases since it is a 3 phase PDU, and then it is providing you the bank load in amps for each of the three banks (I put some test values in so I could associate to them what I see on the web). I think this relates back to how I said the rPDU subtree is not perfect for AP8XXX PDUs and is showing you "load" for AP8XXX which is both phase and bank load for this model. Older AP7XXX PDUs could only show bank load I think.

You'll find in the rPDU2 subtree, we have separate OIDs now for phase, device, and/or bank loads which should only return three values each so I'd refer to those which should work better.

Let me know if you have any questions. The one quirky thing I did find is for rPDU2BankStatusCurrent, I got 5 responses. They appear to be bank 1, bank 2, and bank 3 readings. The last two appear to be the readings from L-N for the (2) 120V outlets this model has - I confirmed this by polling rPDU2BankPropertiesPhaseLayout.

See Answer In Context

5 Replies 5
BillP
Administrator Administrator
Administrator
0 Likes
0
257

Re: SNMPWALK issues finding correct data.

This reply was originally posted by Angela on APC forums on 3/11/2014


Hello,

To begin, for AP8XXX series Rack PDUs, you should ideally be using the .iso.org.dod.internet.private.enterprises.apc.products.hardware.rPDU2 subtree. The rPDU subtree is used for older AP7XXX series Rack PDUs. You may find some supported values but they are only there as to not break customer's polling completely.

Anyway, I set up an AP8865 simulator. I see what you're talking about when I use rPDULoadStatusLoad. What it is providing to you is the phase load - for the 3 phases since it is a 3 phase PDU, and then it is providing you the bank load in amps for each of the three banks (I put some test values in so I could associate to them what I see on the web). I think this relates back to how I said the rPDU subtree is not perfect for AP8XXX PDUs and is showing you "load" for AP8XXX which is both phase and bank load for this model. Older AP7XXX PDUs could only show bank load I think.

You'll find in the rPDU2 subtree, we have separate OIDs now for phase, device, and/or bank loads which should only return three values each so I'd refer to those which should work better.

Let me know if you have any questions. The one quirky thing I did find is for rPDU2BankStatusCurrent, I got 5 responses. They appear to be bank 1, bank 2, and bank 3 readings. The last two appear to be the readings from L-N for the (2) 120V outlets this model has - I confirmed this by polling rPDU2BankPropertiesPhaseLayout.

mccartneyk_apc
Crewman
Crewman
0 Likes
0
255

Re: SNMPWALK issues finding correct data.

This was originally posted on APC forums on 3/11/2014


Sorry I know this next question isnt directly related to APC products but how do i do an snmpwalk for that specific subtree? I usually type in "snmpwalk -v2c -c public myserver.mydomain.com enterprises". What do I specify in order to get to the other part of the tree? Thank you for your quick repsonse!

mccartneyk_apc
Crewman
Crewman
0 Likes
0
256

Re: SNMPWALK issues finding correct data.

This was originally posted on APC forums on 3/11/2014


Nevermind it as easy to figure out what to change in the command. Thanks again.

BillP
Administrator Administrator
Administrator
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0
255

Re: SNMPWALK issues finding correct data.

This reply was originally posted by Angela on APC forums on 3/11/2014


Did you delete one of your messages about the phase thresholds? Haha - I tried to reply and it said the message was not found. If you still have questions on phase balancing/bank balancing, let me know.

BillP
Administrator Administrator
Administrator
0 Likes
0
256

Re: SNMPWALK issues finding correct data.

This reply was originally posted by Angela on APC forums on 3/11/2014


OH - I see, you decided to make a new thread. I'll post my response there smile

Pertientne to this thread though, I just realized I made a mistake. I have two Rack PDUs connected in a Network Port Sharing group. Responses 4 and 5 (from rPDU2BankStatusCurrent) for me on were actually from my Rack PDU 1 where as Rack PDU was AP8865. So, disregard what I said and you should just get the three responses.