Solution To troubleshoot the FEBs, follow these guidelines:
To troubleshoot the FEBs:
• Check the FEB LEDs on the craft interface.
• Make sure the FEB is properly seated in the midplane. Check that each ejector handle
is fully engaged and flush with the FEB bulkhead.
• Issue the CLI show chassis feb command to check the status of each of the installed
FEBs. As shown in the sample output, the value Online in the column labeled State
indicates that the FEB is functioning normally.
user@host> show chassis feb
Temp CPU Utilization (%) Memory Utilization
(%)
Slot State (C) Total Interrupt DRAM (MB) Heap
Buffer
0 Online 66 4 0 512 7
59
1 Online 66 4 0 512 7
59
2 Online 64 4 0 512 7
59
3 Online 67 4 0 512 7
59
4 Empty
5 Offline
For more detailed output, add the detail option. The following example also specifies
a slot number (0), which is optional:
user@host> show chassis feb detail 0
Slot 0 information:
State Online
Intake temperature 66 degrees C / 150 degrees F
Exhaust A temperature 67 degrees C / 152 degrees F
Exhaust B temperature 73 degrees C / 163 degrees F
Total DDR DRAM 512 MB
Total RLDRAM 64 MB
Start time: 2006-09-08 16:29:59 PDT
Uptime: 1 hour, 3 minutes, 4 seconds
You can also issue the show chassis environment feb command to check the status of
a specific FEB. In the example below, the FEB is slot 0 is used. The output is similar to
the following:
user@host> show chassis environment feb 0
FEB 0 status:
State Online
Temperature Intake 66 degrees C / 150 degrees F
Temperature Exhaust A 67 degrees C / 152 degrees F
Temperature Exhaust B 73 degrees C / 163 degrees F
Power
1.2 V 1153 mV
1.5 V 1417 mV
1.8 V 1704 mV
2.5 V 2375 mV
Copyright © 2018, Juniper Networks, Inc.290
M120 Multiservice Edge Router Hardware Guide
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