Juniper MX480 Hardware Manual page 434

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
Slot State
0 Online
1 Online
2 Online
3 Empty
4 Empty
5 Online
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
Temperature
Total CPU DRAM
Total SRAM
Total SDRAM
Start time
Uptime
CPU Utilization (%)
(C) Total Interrupt
41 9
43 5
43 11
42 6
Online
22 degrees C / 71 degrees F
1024 MB
256 MB
0 MB
2006-11-03 07:35:40 PST
2 hours, 27 minutes, 1 second
Memory Utilization (%)
DRAM (MB) Heap
0 1024 15
0 1024 16
0 1024 16
0 1024 16
439
Buffer
57
57
57
57