Cisco IE4010 Powersupply different SNMP Index on same Model

[Vie_adm]

Hello, 

I tried to monitor the powersupply status of my new IE4010 Model. Therefore i used the SNMP OID 1.3.6.1.4.1.9.9.13.1.5.1.3 with the following outcome: 

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1042 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1046 = INTEGER: 1

if i try this on a different switch (but exactly the same model and configuration) i get different Indexes: 

SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1042 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1044 = INTEGER: 1

this would only make sense to me, if there where more than two possible supply sources available. Is that the case? Furthermore ist there a OID to get an overview for these interfaces like i get for the ethernet interfaces with "ifIndex"? 

Its makes not much sense for me now. 

Thank you!

[Mark Elsen]

 - To check if you have multiple power supplies use : show environment  , if so are both switches  running the same software version ?  If not the OID's can become different, the reason is then not always clear.  To get an overview have a full snmpwalk of http://www.circitor.fr/Mibs/Html/C/CISCO-ENVMON-MIB.php

 M.

[Vie_adm]

Thanks for your reply. Both switches do have redundant powersupplies and both switches running the same software version. 

Thanks for the link - very helpful. 

snmpwalk -v1 -c **** **** 1.3.6.1.4.1.9.9.13.1.5.1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1042 = STRING: "Sw1, PS1 Normal"
SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1044 = STRING: "Sw1, PS2 Normal"
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1042 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1044 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1042 = INTEGER: 2
SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1044 = INTEGER: 2

snmpwalk -v1 -c **** ***** 1.3.6.1.4.1.9.9.13.1.5.1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1042 = STRING: "Sw1, PS1 Normal"
SNMPv2-SMI::enterprises.9.9.13.1.5.1.2.1046 = STRING: "Sw1, PS2 Normal"
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1042 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.3.1046 = INTEGER: 1
SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1042 = INTEGER: 2
SNMPv2-SMI::enterprises.9.9.13.1.5.1.4.1046 = INTEGER: 2

I don´t quite get the different outcome. I think i let it be

[Mark Elsen]

 - Sometimes devices can have an (internal) different hardware revision leading to those subtle differences that you observe.

 M.