Solution • Monitor the green LED labeled OK above the DPC on the craft interface as soon as a
DPC is seated in an operating router.
The Routing Engine downloads the DPC software to it under two conditions: the DPC
is present when the Routing Engine boots Junos OS, and the DPC is installed and
requested online through the CLI or push button on the front panel. The DPC then runs
diagnostics, during which the OK LED blinks. When the DPC is online and functioning
normally, the OK LED lights green steadily.
• Make sure the DPC 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 DPC and OK and FAIL DPC LEDs on the craft interface.
When the DPC is online and functioning normally, the OK LED lights green steadily.
• Issue the 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
NOTE: The show chassis fpc command displays the status of the DPCs.
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 2 information:
State Online
Temperature 22 degrees C / 71 degrees F
Total CPU DRAM 1024 MB
Total SRAM 256 MB
Total SDRAM 0 MB
Start time 2006-11-03 07:35:40 PST
Uptime 2 hours, 27 minutes, 1 second
Slot 4 information:
State Online
Temperature 22 degrees C / 71 degrees F
Total CPU DRAM 1024 MB
Total SRAM 256 MB
Total SDRAM 0 MB
Start time 2006-11-03 07:35:48 PST
Uptime 2 hours, 26 minutes, 53 seconds
Slot 7 information:
State Online
Temperature 24 degrees C / 75 degrees F
443Copyright © 2017, Juniper Networks, Inc.
Chapter 30: Troubleshooting Components
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