Using SNMP to monitor Nexus 5000

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Nov 11th, 2009
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Hello,


I would like to know which specific OIDs to use to monitor the following using SNMP on a Nexus 5000:

- CPU total utilization

- Power Supply status

- Chassis Fan status


The Nexus is quite different from other Cisco devices - any help will be appreciated!

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Armando Yesua G... Thu, 12/03/2009 - 09:51
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  • Cisco Employee,

Hi,  I hope this helps,



To monitor fan status use:
cefcFanTrayStatusTable
(1.3.6.1.4.1.9.9.117.1.4.1).  This table will provide you:

cefcFanTrayOperStatus OBJECT-TYPE
    SYNTAX          INTEGER  {
                        unknown(1),
                        up(2),
                        down(3),
                        warning(4)
                    }
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "The operational state of the fan or fan tray.
        unknown(1) - unknown.
        up(2) - powered on.
        down(3) - powered down.
        warning(4) - partial failure, needs replacement
                     as soon as possible."
    ::= { cefcFanTrayStatusEntry 1 }


For power supply status:
cefcFRUPowerStatusTable
(1.3.6.1.4.1.9.9.117.1.1.2). 

This table will provide you:

cefcFRUPowerAdminStatus OBJECT-TYPE
    SYNTAX          PowerAdminType
    MAX-ACCESS      read-write
    STATUS          current
    DESCRIPTION
        "Administratively desired FRU power state."
    ::= { cefcFRUPowerStatusEntry 1 }

cefcFRUPowerOperStatus OBJECT-TYPE
    SYNTAX          PowerOperType
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Operational FRU power state."
    ::= { cefcFRUPowerStatusEntry 2 }

cefcFRUCurrent OBJECT-TYPE
    SYNTAX          FRUCurrentType
    MAX-ACCESS      read-only
    STATUS          current
    DESCRIPTION
        "Current supplied by the FRU (positive values)
        or current required to operate the FRU (negative values)."
    ::= { cefcFRUPowerStatusEntry 3 }


  For CPU and memory: cseSysCPUUtilization (1.3.6.1.4.1.9.9.305.1.1.1) and
cseSysMemoryUtilization (1.3.6.1.4.1.9.9.305.1.1.2).

This will only give you the average % utilization. 
There is no OID for the Nexus to give you free memory. 

http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/mib/reference/NX5000_MIBRef.html

regards


Yesua

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