Troubleshooting Fpcs On The M40E Router - Juniper M40E Hardware Manual

M40e Multiservice Edge Router Hardware Guide
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Troubleshooting FPCs on the M40e Router

Problem
Solution
152
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If both power supplies have failed, the system temperature might have exceeded the
threshold, causing the system to shut down. See "Troubleshooting the M40e Power
System When All LEDs on Both Supplies Are Off" on page 155.
If the LCD on the craft interface reports failure of only one impeller and the other
impellers are functioning normally, the impeller is probably faulty and needs to be
replaced. For replacement instructions, see "Replacing the M40e Front Impeller
Assembly" on page 172, "Replacing the M40e Rear Lower Impeller Assembly" on page 175,
or "Replacing the M40e Rear Upper Impeller Assembly" on page 177. For instructions
about returning a faulty component to Juniper Networks, see "Contacting Customer
Support" on page 307.
Replacing the Fan Tray on an M40e Router on page 168
Removing Components from the Chassis Before Installing the M40e Router Without
a Lift on page 83
Routine Maintenance Procedures for the M40e Router on page 129
The FPCs are not functioning normally.
As soon as an FPC is seated in an operating router, the Routing Engine downloads the
FPC software to it. The FPC then runs diagnostics and enables the PICs housed on it.
During this time, the green LED labeled
blinks. When the FPC is online and functioning normally, the
To troubleshoot the FPCs, follow these guidelines:
If the red LED labeled
FAIL
the LCD on the craft interface for a message about the status of the FPC and the PICs
housed in it.
Make sure the FPC is properly seated in the midplane—use a Phillips screwdriver to
check that the screws at the top and bottom of the card carrier are tight.
To check the status of an FPC, issue the CLI command:
user@host> show chassis fpc
Temp
Slot State (C)
0 Online
1 Empty
2 Offline
3 Empty
4 Online
5 Online
6 Online
7 Empty
For more detailed output, add the
a slot number ( 0 ), which is optional:
STATUS above the FPC on the craft interface
above the FPC on the craft interface lights steadily, check
CPU Utilization (%)
Total Interrupt
37 4 0
-- FPC not supported on platform --
34 1 0
35 4 0
39 4 0
detail option. The following example also specifies
STATUS LED lights steadily.
Memory Utilization (%)
DRAM (MB) Heap Buffer
32 2 40
32 1 40
32 2 40
32 1 39
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