n is 0 or 1 for the slot number of the host subsystem being taken offline.
5. Verify that the control board is offline:
user@host> show chassis environment cb
Related
Documentation
M120 Host Subsystem Description on page 21•
• Maintaining the M120 Host Subsystem on page 266
Maintaining M120 FPCs and CFPCs
Purpose For optimum router performance, verify the condition of the Flexible PIC Concentrators
(FPCs) and compact FPCs (CFPCs). The router can have up to six FPCs, four of Type 1,
2, or 3, and two compact CFPCs, mounted vertically in the FPC card cage at the front of
the chassis, as shown in Figure 1 on page 8.
Action On a regular basis:
• Check the LEDs on the craft interface directly above each FPC slot. The green LED
labeled OK lights steadily when an FPC is functioning normally. For more information,
see “FPC LEDs on the M120 Craft Interface” on page 15.
• Issue the CLI show chassis fpc command to check the status of installed FPCs. As
shown in the sample output, the value Online in the column labeled State indicates
that the FPC is functioning normally:
user@host> show chassis fpc
Temp CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt DRAM (MB) Heap Buffer
0 Empty
1 Empty
2 Online 39 1 0 128 1 59
3 Online 41 0 0 128 1 59
4 Online 43 0 0 128 1 58
5 Online 39 0 0 128 3 59
For more detailed output, add the detail option. The following example also specifies
a slot number (2), which is optional:
user@host> show chassis fpc detail 2
State Online
Temperature 39 degrees C / 102 degrees F
Total CPU DRAM 128 MB
Start time 2006-05-02 08:53:29 PDT
Uptime 1 hour, 51 minutes, 57 seconds
For further description of the output from the commands, see the CLI Explorer.
Copyright © 2018, Juniper Networks, Inc.270
M120 Multiservice Edge Router Hardware Guide
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