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

[Paul Stewart]

Hey there...

For reference, I logged into an MX80 that runs in a warm environment - we've
never lost any optics from this box:

    Module temperature                        :  53 degrees C / 127 degrees
F
    Module temperature                        :  62 degrees C / 143 degrees
F
    Module temperature                        :  50 degrees C / 122 degrees
F
    Module temperature                        :  54 degrees C / 129 degrees
F
    Module temperature                        :  52 degrees C / 125 degrees
F
    Module temperature                        :  52 degrees C / 126 degrees
F
    Module temperature                        :  44 degrees C / 111 degrees
F
    Module temperature                        :  45 degrees C / 114 degrees
F
    Module temperature                        :  49 degrees C / 120 degrees
F
    Module temperature                        :  44 degrees C / 110 degrees
F
    Module temperature                        :  51 degrees C / 124 degrees
F
    Module temperature                        :  49 degrees C / 121 degrees
F
    Module temperature                        :  48 degrees C / 118 degrees
F

Class Item                           Status     Measurement
Temp  PEM 0                          OK
      PEM 1                          OK
      RE 0 Intake                    OK         46 degrees C / 114 degrees F
      RE 0 Front Exhaust             OK         49 degrees C / 120 degrees F
      RE 0 Rear Exhaust              OK         47 degrees C / 116 degrees F
      Routing Engine                 OK         54 degrees C / 129 degrees F
      Routing Engine CPU             OK         66 degrees C / 150 degrees F
      TFEB 0 QX 0 TSen               OK         52 degrees C / 125 degrees F
      TFEB 0 QX 0 Chip               OK         60 degrees C / 140 degrees F
      TFEB 0 LU 0 TSen               OK         52 degrees C / 125 degrees F
      TFEB 0 LU 0 Chip               OK         67 degrees C / 152 degrees F
      TFEB 0 MQ 0 TSen               OK         52 degrees C / 125 degrees F
      TFEB 0 MQ 0 Chip               OK         61 degrees C / 141 degrees F
      TFEB 0 TBB PFE TSen            OK         46 degrees C / 114 degrees F
      TFEB 0 TBB PFE Chip            OK         56 degrees C / 132 degrees F
      TFEB 0 TFEB PCIE TSen          OK         53 degrees C / 127 degrees F
      TFEB 0 TFEB PCIE Chip          OK         68 degrees C / 154 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

For what it's worth...

Paul


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Morgan McLean
Sent: February-11-13 6:32 PM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] Are these temps high enough to cause any issues?

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
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