Troubleshooting The T320 Fpcs - Juniper Core Router T Series Hardware Manual

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Troubleshooting the T320 FPCs

Problem
Solution
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Documentation
Copyright © 2018, Juniper Networks, Inc.
Use the CLI to check for alarms—Issue the
2.
alarms.
T320 Control Board Description on page 30
T320 Standard Control Board and T-CB LEDs on page 32
Maintaining the T320 SCGs on page 273
Overview of Troubleshooting Resources for the T320 Router on page 291
T320 Alarm Messages Overview on page 293
Contacting Customer Support on page 309
Description:
During normal operation:
The green LED above the FPC on the craft interface lights steadily when the FPC
OK
is online and functioning normally.
The green OK LED blinks during startup.
The red FAIL LED on the craft interface above the FPC indicates a problem.
To troubleshoot the FPCs:
If the red LED above the FPC is on, look at the display on the craft interface to
FAIL
1.
check the status of the FPC and the PICs that are plugged into it.
Use the following CLI commands to check the status of an FPC:
2.
user@host> show chassis fpc
To display more detailed information, use the following option:
user@host> show chassis fpc detail
Make sure the FPC is properly seated in the midplane. Check that each ejector handle
3.
has been turned clockwise and is tight. Use a screwdriver to check that the screws
inside the ejector handles are tight.
T320 Flexible PIC Concentrators (FPCs) Description on page 61
T320 Craft Interface Description on page 20
Replacing a T320 FPC on page 233
Chapter 32: Troubleshooting Components
command to view the
show chassis alarms
301