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  1. Observium
  2. OBS-5205

Incorrect Temperature reading intepreted from MIB

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • None
    • None
    • Discovery
    • None

    Description

      Hi we currently have some 400G optics in a few Juniper devices, name the PTX10001 device.

       

      Discovery has ran on the device for the JUNIPER-IFOPTICS-MIB.

       

      It has discovered the module temperature which according to the mib is in .1 celcius. OID:

      ".1.3.6.1.4.1.2636.3.71.1.2.1.1.39"

      https://mibs.observium.org/mib/JUNIPER-IFOPTICS-MIB/#jnxPMCurTemperature

       

      As i understand Observium should be dividing this value by 100, otherwise the temperature given from the device get's intrepted as 556c rather than 55.6c.

       

      I've attached a problem of the issue.

       

      On the same device, the correct temperature also seems to be discovered at.

      https://mibs.observium.org/mib/JUNIPER-DOM-MIB/#jnxDomCurrentModuleTemperature

       

      So there does seem to be a duplication in data too.

       

      However i don't think we can just disable the JUNIPER-IFOPTICS-MIB and use only the JUNIPER-DOM-MIB as things like "https://mibs.observium.org/mib/JUNIPER-DOM-MIB/#jnxDomCurrentTxLaserBiasCurrent" are being discovered and then reporting back 0A.

       

      Where as back on the IFOPTICS mib, "https://mibs.observium.org/mib/JUNIPER-IFOPTICS-MIB/#jnxPMCurTxLaserBiasCurrent", is correctly reporting back the 0.22A.

       

      Overall i'm not sure if this is a vendor issue with having data across two mibs, but the the very least the problem in Observium seems to be with the handling of the temperature and values in the IFOPTICS-MIB that probably needs to be divided if the values in that mib are a .X value, DB, dbm and Celcius.

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            landy Mike Stupalov
            ldyte Luke Dyte
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              Updated:
              Resolved: