• Supported Platforms
• MX240 Routers

• Related Topics
• MX240 Modular Port Concentrator (MPC) LEDs
• Maintaining MX240 MPCs
• Replacing an MX240 MPC

Troubleshooting the MX240 MPCs

Problem

The MPCs are not functioning normally.

Solution

• Monitor the green LED labeled OK above the MPC on the craft interface as soon as an MPC is seated in an operating router.

  The Routing Engine downloads the MPC software to it under two conditions: The MPC is present when the Routing Engine boots Junos OS, and the MPC is installed and requested online through the CLI or push button on the front panel. The MPC then runs diagnostics, during which the OK LED blinks. When the MPC is online and functioning normally, the OK LED lights green steadily.

• Make sure the MPC is properly seated in the midplane. Check that each ejector handle has been turned clockwise and is tight.
• Check the OK/FAIL LED on the MPC and OK and FAIL line card LEDs on the craft interface. When the MPC is online and functioning normally, the OK LED lights green steadily.
• Issue the show chassis fpc command to check the status of installed MPCs. As shown in the sample output, the value Online in the column labeled State indicates that the MPC is functioning normally:
  
  

  user@host> show chassis fpc

                    Temp  CPU Utilization (%)   Memory    Utilization (%)
  Slot State         (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
    0  Online         36      3          0       2048       14         13
    1  Online         40      5          0       2048       26         13
    2  Empty
   

  Note: The show chassis fpc command displays the status of the MPCs.

  For more detailed output, add the detail option. The following example does not specify a slot number, which is optional:

  
  

  user@host> show chassis fpc detail

  Slot 0 information:
    State                                 Online    
    Temperature                        36 degrees C / 96 degrees F
    Total CPU DRAM                   2048 MB
    Total RLDRAM                      806 MB
    Total DDR DRAM                   2632 MB
    Start time:                           2009-12-22 12:27:04 PST
    Uptime:                               6 days, 3 hours, 8 minutes, 41 seconds
    Max Power Consumption             450 Watts
  Slot 1 information:
    State                                 Online    
    Temperature                        40 degrees C / 104 degrees F
    Total CPU DRAM                   2048 MB
    Total RLDRAM                     1324 MB
    Total DDR DRAM                   5120 MB
    Start time:                           2009-12-22 12:27:02 PST
    Uptime:                               6 days, 3 hours, 8 minutes, 43 seconds
    Max Power Consumption             440 Watts

  For further description of the output from the commands, see the Junos System Configuration Guide.