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High temperature on EX4300 switches

[ Edited ]
‎07-23-2020 12:53 AM

Hi all, Could you help me to find the reason of high temperature on EX4300 swtiches. 

Is it normal? 

 

 

 

admin@ex1> show chassis routing-engine    
Routing Engine status:
  Slot 0:
    Current state                  Master
    Temperature                 60 degrees C / 140 degrees F
    CPU temperature             60 degrees C / 140 degrees F
    DRAM                      3072 MB
    Memory utilization          34 percent
    CPU utilization:
      User                      32 percent
      Background                 0 percent
      Kernel                    22 percent
      Interrupt                  3 percent
      Idle                      43 percent
    Model                          EX4300-32F
    Load averages:                 1 minute   5 minute  15 minute
                                       1.23       1.14       1.20
Routing Engine status:
  Slot 1:
    Current state                  Backup
    Temperature                 60 degrees C / 140 degrees F
    CPU temperature             60 degrees C / 140 degrees F
    DRAM                      3072 MB
    Memory utilization          29 percent
    CPU utilization:
      User                      33 percent
      Background                 0 percent
      Kernel                    12 percent
      Interrupt                  0 percent
      Idle                      54 percent
    Model                          EX4300-32F
    Load averages:                 1 minute   5 minute  15 minute
                                       0.62       0.61       0.64

 

 

 

 

3 REPLIES 3
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Re: High temperature on EX4300 switches

[ Edited ]
‎07-23-2020 03:06 AM

Hi g_rahmatov

 

Greetings, 

 

We might need a few outputs to understand the issue and to confirm if this is problematic or not.

show chassis alarms
show chassis environment
show chassis temperature-thresholds
show system processes extensive | except 0.00
show log messages | match temperature

 

[EX] How to verify the component status, temperature, and cooling system

 

EX4300

The maximum thermal output for EX4300-48T is 423 BTU/hour and for EX4300-48P is 5844 BTU/hour.

EX4300 switches except the EX4300-48MP model— No performance degradation up to 10,000  feet (3048 meters)

EX4300-48MP model— No performance degradation up to 6,000  feet (1829 meters)

EX4300 switches except the EX4300-48MP model— Normal operation ensured in the relative humidity range 10% through 85% (noncondensing)

EX4300-48MP model— Normal operation ensured in the relative humidity range 5% through 90% (noncondensing)

Normal operation ensured in the temperature range 32°   F (0° C) through 113°   F (45° C)

Complies with Zone 4 earthquake requirements as per GR-63, Issue 4.

Link: https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/ex4300-site-g...

 

This seems like a 2 member VC, please check the PR as well: 

https://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1419300 

 

Hope this helps.  Please mark "Accept as solution" if this answers your query. 

 

Kudos are appreciated too!  😀

 

Regards, 

Sharat Ainapur

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Junos

Re: High temperature on EX4300 switches

‎07-23-2020 07:44 AM

Hello,

 

This KB could be helpful.

 

https://kb.juniper.net/InfoCenter/index?page=content&id=KB35567&cat=QFX5100&actp=LIST

 

 

Regards,

 

Randall

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Junos

Re: High temperature on EX4300 switches

‎07-23-2020 09:00 AM

 

admin@ex1> show chassis environment               
Class Item                           Status     Measurement
Power FPC 0 Power Supply 0           OK        
      FPC 0 Power Supply 1           OK        
      FPC 1 Power Supply 0           OK        
      FPC 1 Power Supply 1           OK        
Temp  FPC 0 CPU                      OK         56 degrees C / 132 degrees F
      FPC 0 NW-PFE                   OK         45 degrees C / 113 degrees F
      FPC 0 SE-PFE                   OK         39 degrees C / 102 degrees F
      FPC 0 PHY-4/5                  OK         36 degrees C / 96 degrees F
      FPC 0 MGMT PHY                 OK         35 degrees C / 95 degrees F
      FPC 1 CPU                      OK         56 degrees C / 132 degrees F
      FPC 1 NW-PFE                   OK         45 degrees C / 113 degrees F
      FPC 1 SE-PFE                   OK         38 degrees C / 100 degrees F
      FPC 1 PHY-4/5                  OK         36 degrees C / 96 degrees F
      FPC 1 MGMT PHY                 OK         34 degrees C / 93 degrees F
Fans  FPC 0 Fan 0                    OK         Spinning at normal speed
      FPC 0 Fan 0 Airflow            OK         Airflow Out (AFO)
      FPC 0 Fan 1                    OK         Spinning at normal speed
      FPC 0 Fan 1 Airflow            OK         Airflow Out (AFO)
      FPC 1 Fan 0                    OK         Spinning at normal speed
      FPC 1 Fan 0 Airflow            OK         Airflow Out (AFO)
      FPC 1 Fan 1                    OK         Spinning at normal speed
      FPC 1 Fan 1 Airflow            OK         Airflow Out (AFO)
admin@ex1> show chassis temperature-thresholds 
                           Fan speed      Yellow alarm      Red alarm      Fire Shutdown
                          (degrees C)      (degrees C)     (degrees C)      (degrees C)
Item                     Normal  High   Normal  Bad fan   Normal  Bad fan     Normal
FPC 0 CPU                    45    85       75       75       85       85       97
FPC 0 NW-PFE                 40    73       55       55       65       65       77
FPC 0 SE-PFE                 42    71       52       52       62       62       75
FPC 0 PHY-4/5                42    73       52       52       62       62       75
FPC 0 MGMT PHY               42    73       71       71       81       81       86
FPC 1 CPU                    45    85       75       75       85       85       97
FPC 1 NW-PFE                 40    73       55       55       65       65       77
FPC 1 SE-PFE                 42    71       52       52       62       62       75
FPC 1 PHY-4/5                42    73       52       52       62       62       75
FPC 1 MGMT PHY               42    73       71       71       81       81       86
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