Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Checking the Cooling System Status

    Purpose

    For the cooling system to operate properly, the clearance around the chassis must be sufficient for unobstructed airflow. For clearance and maintenance requirements, see the appropriate router hardware guide.

    Action

    To check the cooling system status, use the following operational mode command:

    user@host> show chassis environment

    Sample Output

    For M5 and M10 routers (see also M5 and M10 Router Cooling Systems):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Left Fan 1             OK         Spinning at normal speed
          Left Fan 2             OK         Spinning at normal speed
          Left Fan 3             OK         Spinning at normal speed
          Left Fan 4             OK         Spinning at normal speed
    Misc  Craft Interface        OK        
    

    For M7i routers (see also M7i Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Fan 1                  OK         Spinning at normal speed
          Fan 2                  OK         Spinning at normal speed
          Fan 3                  OK         Spinning at normal speed
          Fan 4                  OK         Spinning at normal speed
    

    For M10i routers (see also M10i Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Fan Tray 0 Fan 1       OK         Spinning at normal speed
          Fan Tray 0 Fan 2       OK         Spinning at normal speed
          Fan Tray 0 Fan 3       OK         Spinning at normal speed
          Fan Tray 0 Fan 4       OK         Spinning at normal speed
          Fan Tray 0 Fan 5       OK         Spinning at normal speed
          Fan Tray 0 Fan 6       OK         Spinning at normal speed
          Fan Tray 0 Fan 7       OK         Spinning at normal speed
          Fan Tray 0 Fan 8       OK         Spinning at normal speed
          Fan Tray 1 Fan 1       OK         Spinning at normal speed
          Fan Tray 1 Fan 2       OK         Spinning at normal speed
          Fan Tray 1 Fan 3       OK         Spinning at normal speed
          Fan Tray 1 Fan 4       OK         Spinning at normal speed
          Fan Tray 1 Fan 5       OK         Spinning at normal speed
          Fan Tray 1 Fan 6       OK         Spinning at normal speed
          Fan Tray 1 Fan 7       OK         Spinning at normal speed
          Fan Tray 1 Fan 8       OK         Spinning at normal speed
    

    For an M20 router (see also M20 Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Rear Fan               OK         Spinning at normal speed
          Front Upper Fan        OK         Spinning at normal speed
          Front Middle Fan       OK         Spinning at normal speed
          Front Bottom Fan       OK         Spinning at normal speed
    Misc  Craft Interface        OK        
    

    For an M40 router (see also M40 Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Top Impeller           OK         Spinning at normal speed
          Bottom impeller        OK         Spinning at normal speed
          Rear Left Fan          OK         Spinning at normal speed
          Rear Center Fan        OK         Spinning at normal speed
          Rear Right Fan         OK         Spinning at normal speed
    Misc  Craft Interface        OK        
    

    For M120 routers (see also M120 Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Front Top Tray Fan 1   OK         Spinning at high speed
          Front Top Tray Fan 2   OK         Spinning at high speed
          Front Top Tray Fan 3   OK         Spinning at high speed
          Front Top Tray Fan 4   OK         Spinning at high speed
          Front Top Tray Fan 5   OK         Spinning at high speed
          Front Top Tray Fan 6   OK         Spinning at high speed
          Front Top Tray Fan 7   OK         Spinning at high speed
          Front Top Tray Fan 8   OK         Spinning at high speed
          Front Bottom Tray Fan 1 OK        Spinning at high speed
          Front Bottom Tray Fan 2 OK        Spinning at high speed
          Front Bottom Tray Fan 3 OK        Spinning at high speed
          Front Bottom Tray Fan 4 OK        Spinning at high speed
          Front Bottom Tray Fan 5 OK        Spinning at high speed
          Front Bottom Tray Fan 6 OK        Spinning at high speed
          Front Bottom Tray Fan 7 OK        Spinning at high speed
          Front Bottom Tray Fan 8 OK        Spinning at high speed
          Rear Top Tray Fan 1    OK         Spinning at high speed
          Rear Top Tray Fan 2    OK         Spinning at high speed
          Rear Top Tray Fan 3    OK         Spinning at high speed
          Rear Top Tray Fan 4    OK         Spinning at high speed
    

    For M40e and M160 routers (see also M40e and M160 Router Cooling Systems):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    [...Output truncated...]
    Fans  Rear Bottom Blower     OK         Spinning at normal speed
          Rear Top Blower        OK         Spinning at normal speed
          Front Top Blower       OK         Spinning at normal speed
          Fan Tray Rear Left     OK         Spinning at normal speed
          Fan Tray Rear Right    OK         Spinning at normal speed
          Fan Tray Front Left    OK         Spinning at normal speed
          Fan Tray Front Right   OK         Spinning at normal speed
    Misc  CIP                    OK        
    

    For M320 routers (see also M320 Router Cooling System):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    Fan   Top Left Front fan     OK         Spinning at normal speed
          Top Right Rear fan     OK         Spinning at normal speed
          Top Right Front fan    OK         Spinning at normal speed
          Top Left Rear fan      OK         Spinning at normal speed
          Bottom Left Front fan  OK         Spinning at normal speed
          Bottom Right Rear fan  OK         Spinning at normal speed
          Bottom Right Front fan OK         Spinning at normal speed
          Bottom Left Rear fan   OK         Spinning at normal speed
          Rear Fan 1 (TOP)       OK         Spinning at normal speed
          Rear Fan 2             OK         Spinning at normal speed
          Rear Fan 3             OK         Spinning at normal speed
          Rear Fan 4             OK         Spinning at normal speed
          Rear Fan 5             OK         Spinning at normal speed
          Rear Fan 6             OK         Spinning at normal speed
          Rear Fan 7 (Bottom)    OK         Spinning at normal speed
    

    For T320 routers and T640 routers (see also T320 Router and T640 Router Cooling Systems):

    user@host>  show chassis environment
    Class Item                   Status     Measurement
    Fans  Top Left Front fan     OK         Spinning at normal speed
          Top Left Middle fan    OK         Spinning at normal speed
          Top Left Rear fan      OK         Spinning at normal speed
          Top Right Front fan    OK         Spinning at normal speed
          Top Right Middle fan   OK         Spinning at normal speed
          Top Right Rear fan     OK         Spinning at normal speed
          Bottom Left Front fan  OK         Spinning at normal speed
          Bottom Left Middle fan OK         Spinning at normal speed
          Bottom Left Rear fan   OK         Spinning at normal speed
          Bottom Right Front fan OK         Spinning at normal speed
          Bottom Right Middle fan OK        Spinning at normal speed
          Bottom Right Rear fan  OK         Spinning at normal speed
          Fourth Blower from top OK         Spinning at normal speed
          Bottom Blower          OK         Spinning at normal speed
          Middle Blower          OK         Spinning at normal speed
          Top Blower             OK         Spinning at normal speed
          Second Blower from top OK         Spinning at normal speed
    

    For the T1600 router (see also T1600 Router Cooling System):

    • To display the status of the fans, issue the show chassis environment or show chassis fan command.

      For the standard fan trays, the output for the show chassis environment command is similar to the following:

      user@host> show chassis environment
      Class Item                    Status  Measurement
      ...
      Fans  Top Left Front fan             OK         Spinning at normal speed
            Top Left Middle fan            OK         Spinning at normal speed
            Top Left Rear fan              OK         Spinning at normal speed
            Top Right Front fan            OK         Spinning at normal speed
            Top Right Middle fan           OK         Spinning at normal speed
            Top Right Rear fan             OK         Spinning at normal speed
            Bottom Left Front fan          OK         Spinning at normal speed
            Bottom Left Middle fan         OK         Spinning at normal speed
            Bottom Left Rear fan           OK         Spinning at normal speed
            Bottom Right Front fan         OK         Spinning at normal speed
            Bottom Right Middle fan        OK         Spinning at normal speed
            Bottom Right Rear fan          OK         Spinning at normal speed
            Rear Tray Top fan              OK         Spinning at normal speed
            Rear Tray Second fan           OK         Spinning at normal speed
            Rear Tray Third fan            OK         Spinning at normal speed
            Rear Tray Fourth fan           OK         Spinning at normal speed
            Rear Tray Fifth fan            OK         Spinning at normal speed
            Rear Tray Sixth fan            OK         Spinning at normal speed
            Rear Tray Seventh fan          OK         Spinning at normal speed
            Rear Tray Bottom fan           OK         Spinning at normal speed...

      Top Left and Top Right refer to fans in the upper front fan tray. Bottom Left and Bottom Right refer to fans in the lower front fan tray. Rear refers to the fans in the rear fan tray.

      For the quiet fan trays, the output for the show chassis environment command is similar to the following:

      user@host> show chassis environment
      Class Item                    Status  Measurement
      Fans  Top Left Front fan             OK         Spinning at normal speed
            Top Left Rear fan              OK         Spinning at normal speed
            Top Right Front fan            OK         Spinning at normal speed
            Top Right Rear fan             OK         Spinning at normal speed
            Bottom Left Front fan          OK         Spinning at normal speed
            Bottom Left Rear fan           OK         Spinning at normal speed
            Bottom Right Front fan         OK         Spinning at normal speed
            Bottom Right Rear fan          OK         Spinning at normal speed
            Rear Tray Top fan              OK         Spinning at normal speed
            Rear Tray Second fan           OK         Spinning at normal speed
            Rear Tray Third fan            OK         Spinning at normal speed
            Rear Tray Fourth fan           OK         Spinning at normal speed
            Rear Tray Fifth fan            OK         Spinning at normal speed
            Rear Tray Sixth fan            OK         Spinning at normal speed
            Rear Tray Seventh fan          OK         Spinning at normal speed
            Rear Tray Bottom fan           OK         Spinning at normal speed

      Top Left and Top Right refer to fans in the upper front fan tray. Bottom Left and Bottom Right refer to fans in the lower front fan tray. Rear refers to the fans in the rear fan tray.

      For the standard fan trays, the output for the show chassis fan command is similar to the following:

      user@host> show chassis fan
            Item                      Status   RPM     Measurement
            Top Left Front fan        OK       3420    Spinning at normal speed
            Top Left Middle fan       OK       3420    Spinning at normal speed
            Top Left Rear fan         OK       3450    Spinning at normal speed
            Top Right Front fan       OK       3420    Spinning at normal speed
            Top Right Middle fan      OK       3420    Spinning at normal speed
            Top Right Rear fan        OK       3420    Spinning at normal speed
            Bottom Left Front fan     OK       3420    Spinning at normal speed
            Bottom Left Middle fan    OK       3450    Spinning at normal speed
            Bottom Left Rear fan      OK       3360    Spinning at normal speed
            Bottom Right Front fan    OK       3420    Spinning at normal speed
            Bottom Right Middle fan   OK       3420    Spinning at normal speed
            Bottom Right Rear fan     OK       3420    Spinning at normal speed
            Rear Tray Top fan         OK       5190    Spinning at normal speed
            Rear Tray Second fan      OK       5190    Spinning at normal speed
            Rear Tray Third fan       OK       5190    Spinning at normal speed
            Rear Tray Fourth fan      OK       5190    Spinning at normal speed
            Rear Tray Fifth fan       OK       5190    Spinning at normal speed
            Rear Tray Sixth fan       OK       5190    Spinning at normal speed
            Rear Tray Seventh fan     OK       5190    Spinning at normal speed
            Rear Tray Bottom fan      OK       5190    Spinning at normal speed
      

      For the quiet fan trays, the output for the show chassis fan command is similar to the following:

      user@host> show chassis fan
            Item                      Status   RPM     Measurement
            Top Left Front fan        OK       2220    Spinning at normal speed
            Top Left Rear fan         OK       2190    Spinning at normal speed
            Top Right Front fan       OK       2220    Spinning at normal speed
            Top Right Rear fan        OK       2250    Spinning at normal speed
            Bottom Left Front fan     OK       2220    Spinning at normal speed
            Bottom Left Rear fan      OK       2220    Spinning at normal speed
            Bottom Right Front fan    OK       2250    Spinning at normal speed
            Bottom Right Rear fan     OK       2220    Spinning at normal speed
            Rear Tray Top fan         OK       5190    Spinning at normal speed
            Rear Tray Second fan      OK       5190    Spinning at normal speed
            Rear Tray Third fan       OK       5190    Spinning at normal speed
            Rear Tray Fourth fan      OK       5190    Spinning at normal speed
            Rear Tray Fifth fan       OK       5190    Spinning at normal speed
            Rear Tray Sixth fan       OK       5190    Spinning at normal speed
            Rear Tray Seventh fan     OK       5190    Spinning at normal speed
            Rear Tray Bottom fan      OK       5190    Spinning at normal speed
      

      For the TX Matrix router (see also TX Matrix Router Cooling System).

      To display the status of the fans in the TX Matrix router, issue the show chassis environment scc command. The output is similar to the following:

      user@host> show chassis environment scc
      scc-re0:
      --------------------------------------------------------------------------
      Class Item                   Status     Measurement
      Temp  PEM 0                  OK         27 degrees C / 80 degrees F
            PEM 1                  OK         27 degrees C / 80 degrees F
            Routing Engine 0       OK         34 degrees C / 93 degrees F
            Routing Engine 1       OK         34 degrees C / 93 degrees F
            CB 0                   OK         33 degrees C / 91 degrees F
            CB 1                   OK         32 degrees C / 89 degrees F
            SIB 0                  OK         42 degrees C / 107 degrees F
            SIB 0 (B)              OK         41 degrees C / 105 degrees F
            SIB 1                  OK         42 degrees C / 107 degrees F
            SIB 1 (B)              OK         41 degrees C / 105 degrees F
            SIB 2                  OK         43 degrees C / 109 degrees F
            SIB 2 (B)              OK         42 degrees C / 107 degrees F
            SIB 3                  OK         44 degrees C / 111 degrees F
            SIB 3 (B)              OK         42 degrees C / 107 degrees F
            SIB 4                  OK         43 degrees C / 109 degrees F
            SIB 4 (B)              OK         43 degrees C / 109 degrees F
            FPM GBUS               OK         28 degrees C / 82 degrees F
            FPM Display            OK         32 degrees C / 89 degrees F
      Fans  Top Left Front fan     OK         Spinning at normal speed
            Top Left Middle fan    OK         Spinning at normal speed
            Top Left Rear fan      OK         Spinning at normal speed
            Top Right Front fan    OK         Spinning at normal speed
            Top Right Middle fan   OK         Spinning at normal speed
            Top Right Rear fan     OK         Spinning at normal speed
            Bottom Left Front fan  OK         Spinning at normal speed
            Bottom Left Middle fan OK         Spinning at normal speed
            Bottom Left Rear fan   OK         Spinning at normal speed
            Bottom Right Front fan OK         Spinning at normal speed
            Bottom Right Middle fan OK        Spinning at normal speed
            Bottom Right Rear fan  OK         Spinning at normal speed
            Rear Tray Top fan      OK         Spinning at normal speed
            Rear Tray Second fan   OK         Spinning at normal speed
            Rear Tray Third fan    OK         Spinning at normal speed
            Rear Tray Fourth fan   OK         Spinning at normal speed
            Rear Tray Fifth fan    OK         Spinning at normal speed
            Rear Tray Sixth fan    OK         Spinning at normal speed
            Rear Tray Seventh fan  OK         Spinning at normal speed
            Rear Tray Bottom fan   OK         Spinning at normal speed
      Misc  CIP 0                  OK        
            CIP 1                  OK        
            SPMB 0                 OK        
            SPMB 1                 OK        

      Top Left and Top Right refer to fans in the upper front fan tray; Bottom Left and Bottom Right refer to fans in the lower front fan tray.

      To display the status of the fans in the routing matrix (TX Matrix router and all T640 routers), issue the show chassis environment command. To display the status of the fans in a specific T640 router, issue the show chassis environment lcc lcc-number command, where lcc-number is the chassis ID of the router and can be from 0 through 3.

      Note: The speed of the fans in the rear fan tray of a T640 router is affected by the temperature of the T640-SIB main board (displayed as SIB n ), not by the temperature of the T640-SIB mezzanine board [displayed as SIB n (B)].

    For the TX Matrix Plus router (see also TX Matrix Plus Router Cooling System):

    user@host> show chassis fan
    sfc0-re0:
    
    --------------------------------------------------------------------------
    
          Item                      Status   RPM     Measurement
          Fan Tray 0 Fan 1          OK       3450    Spinning at normal speed 
          Fan Tray 0 Fan 2          OK       3420    Spinning at normal speed 
          Fan Tray 0 Fan 3          OK       3480    Spinning at normal speed 
          Fan Tray 0 Fan 4          OK       3360    Spinning at normal speed 
          Fan Tray 0 Fan 5          OK       3360    Spinning at normal speed 
          Fan Tray 0 Fan 6          OK       3390    Spinning at normal speed 
          Fan Tray 1 Fan 1          OK       3420    Spinning at normal speed 
          Fan Tray 1 Fan 2          OK       3450    Spinning at normal speed 
          Fan Tray 1 Fan 3          OK       3450    Spinning at normal speed 
          Fan Tray 1 Fan 4          OK       3420    Spinning at normal speed 
          Fan Tray 1 Fan 5          OK       3480    Spinning at normal speed 
          Fan Tray 1 Fan 6          OK       3420    Spinning at normal speed 
          Fan Tray 2 Fan 1          OK       3420    Spinning at normal speed 
          Fan Tray 2 Fan 2          OK       3420    Spinning at normal speed 
          Fan Tray 2 Fan 3          OK       3420    Spinning at normal speed 
          Fan Tray 2 Fan 4          OK       3390    Spinning at normal speed 
          Fan Tray 2 Fan 5          OK       3450    Spinning at normal speed 
          Fan Tray 2 Fan 6          OK       3360    Spinning at normal speed 
          Fan Tray 2 Fan 7          OK       3390    Spinning at normal speed 
          Fan Tray 2 Fan 8          OK       3420    Spinning at normal speed
    

    Meaning

    The command output shows the fans, impellers, or blowers monitored for the router type. The command output displays the fan, impeller, or blower status and the spinning speed. Measurement indicates if the fan or impeller is spinning at normal or high speed.

    Published: 2012-08-20