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OID clarification for controlling outlets via SNMP on guest/linked rPDU's?

Discussion in Racks, Rack Accessories, & Cooling started by Brian , 3/8/2017 12:26 PM
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  • scrupul0us
    Novice Novice
    Brian 3/8/2017 12:26 PM

    I am looking to clarify my understanding of the OID(s) used for controlling outlets on linked/guest rPDUs.

    We all know the base OID for controlling a single rPDU:

    rPDUOutletControlOutletName rPDUOutletControlOutletName
    rPDUOutletControlOutletPhase rPDUOutletControlOutletPhase
    rPDUOutletControlOutletCommand rPDUOutletControlOutletCommand
    rPDUOutletControlOutletBank rPDUOutletControlOutletBank

    I have found what I think is the correct OID path for controlling outlets in rPDU2 at: enterprises.318. however I wasn't able to find anything concrete to shore up my assumption:

    rPDU2OutletSwitchedControlTable rPDU2OutletSwitchedControlTable
    rPDU2OutletSwitchedControlEntry rPDU2OutletSwitchedControlEntry
    rPDU2OutletSwitchedControlIndex rPDU2OutletSwitchedControlIndex
    rPDU2OutletSwitchedControlModule rPDU2OutletSwitchedControlModule
    rPDU2OutletSwitchedControlName rPDU2OutletSwitchedControlName
    rPDU2OutletSwitchedControlNumber rPDU2OutletSwitchedControlNumber
    rPDU2OutletSwitchedControlCommand rPDU2OutletSwitchedControlCommand

    When I walk that it appears to be what I want but before I made assumptions I wanted to ask.

    I've attached a txt file with the output from snmpwalk on if that helps.

    Thank you =)

  • ipicKedawinna
    =S= Representative
    Angela 3/8/2017 2:38 PM (in response to Brian)

    Hi Brian,

    Any OID that begins with rPDU is intended to be used with our older style PDUs with model numbers in the AP7XXX range - AP79XX specifically for switched outlet models.

    Any OID that begins with rPDU2 is intended to be used with or 2G or 2nd generation PDUs that have model numbers beginning with AP8XXX. The switched models are AP89XX and AP86XX.

    If you are using the AP8XXX series and are using the Network Port Sharing feature - which means you'd have host and guest PDUs, then I suggest to read here and refer to the SNMP section to understand how SNMP changes when you have more than one PDU at a single IP address -> http://www.apc.com/us/en/faqsFA164436 

    Essentially, you'll need to pay attention to the index numbers for each rPDU2 OID and know which PDU is at which SNMP index, especially if you have more than two PDUs where it can be a little complex. And it gets even more complex if you have a mix and match of PDUs that are switched and those that are metered because certain OIDs are only intended for Switched PDUs.

    Anyway, please review what I shared here and let us know if you need any further clarification afterwards.

  • scrupul0us
    Novice Novice
    Brian 3/9/2017 6:20 PM (in response to Angela)


    Thanks, I've gone through and ensured outlet# => index => index device owner.

    To simplify (please correct me if I'm wrong), to reboot outlet 24 on a PDU-B in a shared gen2 PDU implementation via SNMP I'd send "3" to:


    ...where 48 is the index assigned to port 24 on PDU-B.


    ...seems to confirm this - just crossing my T's and dotting my I's. Thanks =)

  • ipicKedawinna
    =S= Representative
    Angela 3/9/2017 8:08 PM (in response to Brian)

    Hi Brian,

    That looks right. I'd then guess you probably have two, switched 24 outlet PDUs so instance 48 on that OID would indeed be outlet #24 on your second PDU.

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