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changing temperature thresholds on EX switch

  • 1.  changing temperature thresholds on EX switch

    Posted 05-29-2016 05:11

    Since we wanted to receive alarms from Junos Space / Network Director about tempretures on EX switches , its possible . But if you want to receive temp. alarms once switch reaches specific temp. , then it need to be confgured on the EX .

     

    Note: Change of Temperature thresholds on EX switch is not recommended by JTAC.

     

    Tested by me on EX switch 3300 , JunOS: 12.3R9

     

    This is hidden command , so type "set chassis temperature-threshold ?" at once

     

    {master:0}[edit]
    master@SW-EX3300# set chassis temp
    ^
    syntax error.
    master@SW-EX3300# set chassis temperature-threshold ?
    Possible completions:
    + apply-groups Groups from which to inherit configuration data
    + apply-groups-except Don't inherit configuration data from these groups
    fire-shutdown Threshold at which router will be shutdown within 10 seconds (degrees C)
    red-alarm Threshold at which red alarm is set (degrees C)
    red-alarm-if-failed-fan Threshold at which red alarm is set when bad fan present (degrees C)
    yellow-alarm Threshold at which yellow alarm is set (degrees C)
    yellow-alarm-if-failed-fan Threshold at which yellow alarm is set when bad fan present (degrees C)
    {master:0}[edit]
    master@SW-EX3300# set chassis temperature-threshold red-alarm ?
    Possible completions:
    <red-alarm> Threshold at which red alarm is set (degrees C)
    {master:0}[edit]



  • 2.  RE: changing temperature thresholds on EX switch

     
    Posted 05-29-2016 08:18

    The changing of the temperture alarm values are hidden for a reason.  These should only be manipulated in rare circumstances when alarm conditions require the change.  The levels are set to those required to insure operation of the hardware on which they are set for high temperatures.

     

    http://www.juniper.net/documentation/en_US/junos12.3/topics/reference/command-summary/show-chassis-temperature-thresholds-command.html

     

    http://kb.juniper.net/InfoCenter/index?page=content&id=KB10969



  • 3.  RE: changing temperature thresholds on EX switch

    Posted 03-06-2018 02:05

    Unfortunately changing temperature thresholds via e.g. # set chassis temperature-threshold red-alarm 30

    on both EX 3300 and EX 4300 Juniper switches generates only log events in messages, resp.

    > show chassis alarms
    2 alarms currently active
    Alarm time Class Description
    2018-03-02 13:05:16 CET Major FPC 0 CPU Temp Too Hot

    2018-02-27 10:25:47 CET Major Management Ethernet Link Down

     

    So, no trap with jnxOverTemeprature is send meanwhile

    > request snmp spoof-trap jnxOverTemperature generates and sends SNMP trap OK.