[j-nsp] Are these temps high enough to cause any issues?

Brad Fleming bdflemin at gmail.com
Wed Feb 13 11:54:33 EST 2013


Here's from an MX-10 in a 68F ambient room with pretty good airflow through the chassis. This node also has a 2x10Gbps in the box generating some additional heat.

root at lab-MX# ...cs optics | match temperature | except high | except low    
    Module temperature                        :  29 degrees C / 85 degrees F
    Module temperature                        :  27 degrees C / 81 degrees F


On Feb 11, 2013, at 5:31 PM, Morgan McLean <wrx230 at gmail.com> wrote:

> Here is the output of a few commands (bolded).
> 
> In the past two weeks, one SFP from each of our border MX80's have failed.
> They were juniper 1gig sx modules. I'm not sure if this is coincidence, or
> if its heat related. According to the thresholds, things seem to be OK, but
> I figured I should ask. For instance, the warn threshold for the modules
> are like 180deg F, not sure what it is for the chassis or individual chips.
> *
> *
> *someuser at somehost.somewhere>* *show interfaces diagnostics optics |match
> temperature |except high|except low *
>    Module temperature                        :  50 degrees C / 122 degrees
> F
>    Module temperature                        :  50 degrees C / 122 degrees
> F
>    Module temperature                        :  48 degrees C / 119 degrees
> F
>    Module temperature                        :  47 degrees C / 117 degrees
> F
>    Module temperature                        :  49 degrees C / 120 degrees
> F
>    Module temperature                        :  51 degrees C / 124 degrees
> F
> 
> *someuser at somehost.somewhere> show chassis environment *
> Class Item                           Status     Measurement
> Temp  PEM 0                          OK
>      PEM 1                          OK
>      RE 0 Intake                    OK         48 degrees C / 118 degrees F
>      RE 0 Front Exhaust             OK         51 degrees C / 123 degrees F
>      RE 0 Rear Exhaust              OK         48 degrees C / 118 degrees F
>      Routing Engine                 OK         55 degrees C / 131 degrees F
>      Routing Engine CPU             OK         66 degrees C / 150 degrees F
>      TFEB 0 QX 0 TSen               OK         51 degrees C / 123 degrees F
>      TFEB 0 QX 0 Chip               OK         61 degrees C / 141 degrees F
>      TFEB 0 LU 0 TSen               OK         51 degrees C / 123 degrees F
>      TFEB 0 LU 0 Chip               OK         66 degrees C / 150 degrees F
>      TFEB 0 MQ 0 TSen               OK         51 degrees C / 123 degrees F
>      TFEB 0 MQ 0 Chip               OK         58 degrees C / 136 degrees F
>      TFEB 0 TBB PFE TSen            OK         48 degrees C / 118 degrees F
>      TFEB 0 TBB PFE Chip            OK         59 degrees C / 138 degrees F
>      TFEB 0 TFEB PCIE TSen          OK         53 degrees C / 127 degrees F
>      TFEB 0 TFEB PCIE Chip          OK         69 degrees C / 156 degrees F
> Fans  Fan 1                          OK         Spinning at high speed
>      Fan 2                          OK         Spinning at high speed
>      Fan 3                          OK         Spinning at high speed
>      Fan 4                          OK         Spinning at high speed
>      Fan 5                          OK         Spinning at high speed
> 
> -- 
> Thanks,
> Morgan
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp




More information about the juniper-nsp mailing list