Infoblox CPU IP_CPU

Version 1

    Infoblox appliance CPU custom mib pollers using transformation formula.

     

    Based on Infoblox FAQ.

     

    How can I calculate CPU load from SNMP raw values?

     

     

    The following formula can be used to calculate CPU usage:- 100 * (ssCpuRawUser.0 + ssCpuRawNice.0 + ssCpuRawSystem.0) / ( ssCpuRawUser.0 + ssCpuRawNice.0 + ssCpuRawSystem.0 + ssCpuRawIdle.0 + ssCpuRawWait.0) The raw values are cumulative and to calculate statistics or plot a chart between time t1 and t2 we can use delta between t1 and t2 for each of these counters in the formula.  The relevant OIDs are:- UCD-SNMP-MIB::ssCpuRawUser.0 OID:  .1.3.6.1.4.1.2021.11.50.0 UCD-SNMP-MIB::ssCpuRawNice.0 OID:  .1.3.6.1.4.1.2021.11.51.0 UCD-SNMP-MIB::ssCpuRawSystem.0 OID:  .1.3.6.1.4.1.2021.11.52.0 UCD-SNMP-MIB::ssCpuRawIdle.0 OID:  .1.3.6.1.4.1.2021.11.53.0 UCD-SNMP-MIB::ssCpuRawWait.0 OID:  .1.3.6.1.4.1.2021.11.54.0 Note:- Certain SNMP tools may use deprecated OID 'UCD-SNMP-MIB::ssCpuIdle. 0' (.1.3.6.1.4.1.2021.11.11.0) resulting in wrong CPU load calculation.  Refer to KB #13591 for more details.