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Cisco 9300 false alarms for HotSpot Temperature sensors

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    Cisco 9300 false alarms for HotSpot Temperature sensors

    Hello group, I have the following problem:

    Zabbix 4.4.5 / Ubuntu 18.04

    Problem description:

    I tried to collect Cisco 9300 information via SNMP. During the proces I received the following info:

    ***********************
    Switch 1 - HotSpot Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1014] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 56 °C Graph

    Switch 1 - HotSpot Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1014] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 1 - Inlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1012] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 26 °C +1 °C Graph

    Switch 1 - Inlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1012] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 1 - Outlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1013] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 37 °C Graph

    Switch 1 - Outlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1013] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - HotSpot Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2014] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 60 °C Graph

    Switch 2 - HotSpot Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2014] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - Inlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2012] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 25 °C Graph

    Switch 2 - Inlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2012] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - Outlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2013] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 36 °C Graph

    Switch 2 - Outlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2013] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph



    ***********************

    Some sensors reports more than 50° C. Is this correct? I found a Zabbix ticket with the same error reported:
    Template Net Cisco IOS SNMPv2 - false alarms for HotSpot Temperature sensors ( not recognized)

    https://support.zabbix.com/browse/ZBX-16356

    Could you please help me with this issue?

    Thanks in advance.

    Regards.





    #2
    Originally posted by hernan View Post
    Hello group, I have the following problem:

    Zabbix 4.4.5 / Ubuntu 18.04

    Problem description:

    I tried to collect Cisco 9300 information via SNMP. During the proces I received the following info:

    ***********************
    Switch 1 - HotSpot Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1014] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 56 °C Graph

    Switch 1 - HotSpot Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1014] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 1 - Inlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1012] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 26 °C +1 °C Graph

    Switch 1 - Inlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1012] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 1 - Outlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.1013] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 37 °C Graph

    Switch 1 - Outlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.1013] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - HotSpot Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2014] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 60 °C Graph

    Switch 2 - HotSpot Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2014] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - Inlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2012] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 25 °C Graph

    Switch 2 - Inlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2012] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph

    Switch 2 - Outlet Temp Sensor, GREEN : Temperature
    sensor.temp.value[ciscoEnvMonTemperatureValue.2013] 3m 90d 365d SNMPv2 agent 2020-02-10 17:51:18 36 °C Graph

    Switch 2 - Outlet Temp Sensor, GREEN : Temperature status
    sensor.temp.status[ciscoEnvMonTemperatureState.2013] 3m 2w 0d SNMPv2 agent 2020-02-10 17:51:18 normal (1) Graph



    ***********************

    Some sensors reports more than 50° C. Is this correct? I found a Zabbix ticket with the same error reported:
    Template Net Cisco IOS SNMPv2 - false alarms for HotSpot Temperature sensors ( not recognized)

    https://support.zabbix.com/browse/ZBX-16356

    Could you please help me with this issue?

    Thanks in advance.

    Regards.



    Hello Guys,


    Could you please help me with this issue?

    Thanks in advance.

    Regards.

    Comment


      #3
      Hi Hernan!

      I guess I don't understand what the issue is that you're having? Is it that you're not sure that the values Zabbix is reporting are correct?

      Am I correct in understanding that you're using one of the templates that comes with Zabbix, and that template uses SNMP to monitor a particular model of Cisco equipment?

      If my understanding is correct, then my recommendation to you is
      1. Examine the template you're trying to use. Figure out which SNMP OIDs that template is using, and then compare that with documentation for your exact Cisco equipment, to make certain that the template is using the correct OIDs for your gear. Many big vendors often revise their equipment, so it's important that you verify that the template that comes with Zabbix is correct for your particular model and revision of the equipment. As a Cisco customer, you should be able to get the correct MIBs for your particular model and revision of equipment, and then compare the OIDs to the ones that this template is using.
      2. Once you've confirmed that the Zabbix template is using OIDs that are correct for your equipment, then it should be very easy to check the values that are being reported and compare them to what Zabbix is showing. Using SNMP tools like snmpwalk can help you verify that the Zabbix values match values gathered via some other method. The support ticket you linked also mentions a Cisco IOS command you can run that will get some of the same values in a different way. That might be another good method to confirm that Zabbix is collecting the right data.

      Does that help, or have I completely misunderstood what you're asking about?

      Comment

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