• Supported Platforms
• MX480 Routers

• Related Topics
• MX480 Chassis Description
• DPC and MPC LEDs on the MX480 Craft Interface

Maintaining MX480 DPCs

Purpose

The router can have up to six Dense Port Concentrators (DPCs) mounted horizontally in the DPC card cage at the front of the chassis. For optimum router performance, verify the condition of the DPCs.

Action

On a regular basis:

• Check the LEDs on the craft interface directly above each DPC slot. The green LED labeled OK lights steadily when a DPC is functioning normally.
• Check the OK/FAIL LED on the DPC. For more information, seeMX Series 3D Universal Edge Routers Line Card Guide . If the DPC detects a failure, the DPC sends an alarm message to the Routing Engine.
• Check the status of installed DPCs by issuing the CLI show chassis fpc command to check the status of installed DPCs. As shown in the sample output, the value Online in the column labeled State indicates that the DPC is functioning normally:
  
  

  user@host> show chassis fpc

                Temp  CPU Utilization (%)   Memory    Utilization (%)
  Slot State            (C)  Total  Interrupt      DRAM (MB) Heap     Buffer
    0  Online            41      9          0       1024       15         57
    1  Online            43      5          0       1024       16         57
    2  Online            43     11          0       1024       16         57
    3  Empty
    4  Empty
    5  Online            42      6          0       1024       16         57

  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                        41 degrees C / 105 degrees F
    Total CPU DRAM                   1024 MB
    Total RLDRAM                      256 MB
    Total DDR DRAM                   4096 MB
    Start time:                           2007-07-10 12:28:33 PDT
    Uptime:                               1 hour, 33 minutes, 52 seconds
    Max Power Consumption             368 Watts
  Slot 1 information:
    State                                 Online
    Temperature                        43 degrees C / 109 degrees F
    Total CPU DRAM                   1024 MB
    Total RLDRAM                      256 MB
    Total DDR DRAM                   4096 MB
    Start time:                           2007-07-10 12:28:38 PDT
    Uptime:                               1 hour, 33 minutes, 47 seconds
    Max Power Consumption             249 Watts
  Slot 2 information:
    State                                 Online
    Temperature                        43 degrees C / 109 degrees F
    Total CPU DRAM                   1024 MB
    Total RLDRAM                      256 MB
    Total DDR DRAM                   4096 MB
    Start time:                           2007-07-10 12:28:40 PDT
    Uptime:                               1 hour, 33 minutes, 45 seconds
    Max Power Consumption             335 Watts
  Slot 5 information:
    State                                 Online
    Temperature                        42 degrees C / 107 degrees F
    Total CPU DRAM                   1024 MB
    Total RLDRAM                      256 MB
    Total DDR DRAM                   4096 MB
    Start time:                           2007-07-10 12:28:42 PDT
    Uptime:                               1 hour, 33 minutes, 43 seconds
    Max Power Consumption             333 Watts
   

• Issue the CLI show chassis fpc pic-status command. The DPC slots are numbered 0 through 5, bottom to top:
  
  

  user@host> show chassis fpc pic-status

  Slot 0   Online       DPCE 4x 10GE R
    PIC 0  Online       1x 10GE(LAN/WAN)
    PIC 1  Online       1x 10GE(LAN/WAN)
    PIC 2  Online       1x 10GE(LAN/WAN)
    PIC 3  Online       1x 10GE(LAN/WAN)
  Slot 1   Online       DPCE 40x 1GE R
    PIC 0  Online       10x 1GE(LAN)
    PIC 1  Online       10x 1GE(LAN)
    PIC 2  Online       10x 1GE(LAN)
    PIC 3  Online       10x 1GE(LAN)
  Slot 2   Online       DPCE 40x 1GE R
    PIC 0  Online       10x 1GE(LAN)
    PIC 1  Online       10x 1GE(LAN)
    PIC 2  Online       10x 1GE(LAN)
    PIC 3  Online       10x 1GE(LAN)
  Slot 5   Online       DPC 4x 10GE R
    PIC 0  Online       1x 10GE(LAN/WAN)
    PIC 1  Online       1x 10GE(LAN/WAN)
    PIC 2  Online       1x 10GE(LAN/WAN)
    PIC 3  Online       1x 10GE(LAN/WAN)

  For further description of the output from the command, see the Junos System Basics and Services Command Reference.