•
Replacing a T4000 Rear Air Filter on page 220
Troubleshooting the T4000 Craft Interface
Problem
The following alarms, LEDs, and other conditions indicate a problem with the craft
interface:
•
The router is powered on, but none of the LEDs on the craft interface are lit.
•
A yellow alarm indicates that the craft interface has failed.
In
Table 32 on page 196
, the text in the column labeled ”LCD Message” appears in the
display of the craft interface. The text in the column labeled “CLI Message” appears in
the output from the
show chassis alarms
command.
Table 32: Chassis Alarm Messages for the Craft Interface
CLI Message
LCD Message
Alarm Type
Craft Failure
Craft Failure
Yellow
Solution
To troubleshoot the craft interface:
1.
Check the LEDs on the craft interface. If the router is powered on but none of the LEDs
are lit, reseat the craft interface to make sure that it is installed properly. See
“Replacing
a T4000 Craft Interface” on page 234
.
2.
Use the CLI to check for alarms. Use the
show chassis alarms
command.
Related
Documentation
T4000 Craft Interface Description on page 23
•
•
T4000 Craft Interface LEDs on page 25
Troubleshooting the T4000 Host Subsystems
Problem
The following alarms and LEDs indicate a problem with a host subsystem control board
and Routing Engine:
•
The red host subsystem
FAIL
LED on the craft interface is lit.
•
The green host subsystem
OK
LED on the craft interface is not lit.
•
A red alarm indicates that the host subsystem has been removed.
•
A yellow alarm indicates that the host subsystem has failed.
In
Table 33 on page 197
, the text in the column labeled ”LCD Message” appears in the
display of the craft interface. The text in the column labeled “CLI Message” appears in
the output from the
show chassis alarms
command.
Copyright © 2013, Juniper Networks, Inc.
196
T4000 Router Hardware Guide
Summary of Contents for T4000 -
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