Troubleshooting M120 Fpcs And Cfpcs - Juniper Networks Hardware Manual

Troubleshooting M120 FPCs and CFPCs

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Solution
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The FPCs or CFPCs are not functioning normally.
As soon as an FPC (or CFPC) is seated in an operating router, the Routing Engine
downloads the FPC software to it under two conditions: the FPC is present when the
Routing Engine boots the Junos OS, and the FPC is installed and requested online through
the CLI or push button on the front panel. The FPC then runs diagnostics and enables
the PICs housed on it. During this time, the green LED labeled
the craft interface blinks. When the FPC is online and functioning normally, the
LED lights steadily.
To troubleshoot the FPCs:
Make sure the FPC is properly seated in the midplane. Check that each ejector handle
has been turned clockwise and is tight.
Issue the
show chassis fpc
in the sample output, the value
FPC is functioning normally:
user@host> show chassis fpc
Slot State
0 Empty
1 Empty
2 Online
3 Online
4 Online
5 Online
For more detailed output, add the
a slot number ( 2 ), which is optional:
user@host> show chassis fpc detail 2
State
Temperature
Total CPU DRAM
Start time
Uptime
For further description of the output from the commands, see the Junos OS System
Basics and Services Command Reference.
M120 Flexible PIC Concentrators (FPCs) Overview on page 9
M120 Compact FPCs (CFPCs) Overview on page 12
Maintaining M120 FPCs and CFPCs on page 106
Replacing an M120 FPC on page 152
Replacing an M120 CFPC on page 157
Chapter 13: Troubleshooting M120 Hardware Components
command to check the status of installed FPCs. As shown
in the column labeled
Online
Temp CPU Utilization (%)
(C) Total Interrupt
39 1 0
41 0 0
43 0 0
39 0 0
detail option. The following example also specifies
Online
39 degrees C / 102 degrees F
128 MB
2006-05-02 08:53:29 PDT
1 hour, 51 minutes, 57 seconds
above the FPC on
STATUS
STATUS
indicates that the
State
Memory Utilization (%)
DRAM (MB) Heap Buffer
128 1 59
128 1 59
128 1 58
128 3 59
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