Maintaining MX240 MPCs

Purpose

For optimum router performance, verify the condition of the Modular Port Concentrators (MPCs). The router can have up to three MPCs mounted horizontally in the card cage at the front of the chassis.

Action

• Check the LEDs on the craft interface directly above each MPC slot. The green LED labeled OK lights steadily when an MPC is functioning normally.
• Check the OK/FAIL LED on the MPC. If the MPC detects a failure, the MPC sends an alarm message to the Routing Engine.
• Issue the CLI 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  Online         41      6          0       1024        7         43

  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
  Slot 2 information:
    State                                 Online    
    Temperature                        41 degrees C / 105 degrees F
    Total CPU DRAM                   1024 MB
    Total RLDRAM                      128 MB
    Total DDR DRAM                   2048 MB
    Start time:                           2009-12-22 12:26:48 PST
    Uptime:                               6 days, 3 hours, 8 minutes, 57 seconds
    Max Power Consumption             265 Watts

• Issue the CLI show chassis fpc pic-status command. The MPC slots are numbered 1/0, 1, and 2, bottom to top:
  user@host> show chassis fpc pic-status

  Slot 0   Online       MPC Type 2 3D EQ
    PIC 0  Online       1x 10GE XFP
    PIC 1  Online       1x 10GE XFP
  Slot 1   Online       MPC 3D 16x 10GE
    PIC 0  Online       4x 10GE(LAN) SFP+
    PIC 1  Online       4x 10GE(LAN) SFP+
    PIC 2  Online       4x 10GE(LAN) SFP+
    PIC 3  Online       4x 10GE(LAN) SFP+
  Slot 2   Online       MS-DPC
    PIC 0  Online       MS-DPC PIC
    PIC 1  Online       MS-DPC PIC 

  For further description of the output from the command, see the Junos OS Operational Mode Commands.