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Cisco Nexus Interface Utilization Monitoring

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  • brucebay
    Junior Member
    • May 2020
    • 13

    #1

    Cisco Nexus Interface Utilization Monitoring

    I am trying to graph my Cisco 9k Interface Utilization Bandwidth, but I cannot graph the actual values,
    How do I get the total input/output bw utilization (each one separately) of a Cisco Nexus switch in Zabbix?
    I tried the following SNMP OIDs but they are not showing the actual BW utilization that I can see on the switch itself through the "sh interface <interface-number> | inc rate

    here is the problem Green for input and Red For output)
    Here is the output of the command: sh int po1 | inc rate
    30 seconds input rate 66820925736 bits/sec, 6122729 packets/sec
    30 seconds output rate 7296523608 bits/sec, 664321 packets/sec
    input rate 66.82 Gbps, 6.12 Mpps; output rate 7.30 Gbps, 664.32 Kpps

    what I know is to use this SNMP OIDs for input and output rate:
    ifInOctets - 1.3.6.1.2.1.2.2.1.10 and here is the value that I get through snmpwalkIF-MIB::ifInOctets.369098752 = Counter32: 4256579643
    ifOutOctets1.3.6.1.2.1.2.2.1.16 and here is the value that I get through snmpwalkIF-MIB::ifOutOctets.369098752 = Counter32: 1399263241

    but as you can see the values that I get for the ifInOctets and ifOutOctets are different from what I see on the switch itself as the 30s input rate or 30s output rate, I believe the ifInOctets and ifOutOctets are not 30s input/output rate but they are 1s input output rate, anyway it should be close since they are the average numbers

    thank you
  • CyberTod
    Junior Member
    • Jan 2022
    • 8

    #2
    Here is some description about it :


    You need to use preprocessing on these values to use them properly as described here :


    Look at Change per second. But that should not be needed if you use templates for Interfaces simple SNMP as it is already made for this.
    Also use the 64bit versions of the counters.

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    • brucebay
      Junior Member
      • May 2020
      • 13

      #3
      Yeah, I used the SNMP interface template in Zabbix to get what I wanted, what it does is to actually add simple change and multiply by 8 to those counters.

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