Troubleshooting The T4000 Control Boards; Table 33: Chassis Alarm Messages For Host Subsystems - Juniper T4000 Hardware Manual

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Troubleshooting the T4000 Control Boards

Problem
Copyright © 2013, Juniper Networks, Inc.

Table 33: Chassis Alarm Messages for Host Subsystems

Alarm Type LCD Message
Red
Host host-number Removed
Yellow
Host host-number Failure
To troubleshoot the host subsystems:
Check the LEDs on the faceplate of each control board and Routing Engine.
1.
Check the LEDs on the craft interface.
2.
If the red or
HOST0 FAIL
3.
Use the
4. show chassis alarms
T4000 Host Subsystem Description on page 35
T4000 Control Board Description on page 36
T4000 LCC-CB on page 37
T4000 LCC-CB Control Board LEDs on page 37
T4000 Routing Engine Description on page 39
T4000 RE-C1800 Routing Engine Description on page 40
T4000 RE-C1800 LEDs on page 41
Maintaining the T4000 Host Subsystem on page 182
Replacing a T4000 LCC-CB on page 228
Replacing a T4000 Routing Engine on page 267
The following alarms and LEDs indicate a problem with a control board:
A red alarm indicates that the control board has failed or has been removed.
A yellow alarm indicates that the Ethernet switch in the control board has failed.
The yellow LED on the control board faceplate is lit.
FAIL
The green LED on the control board faceplate is not lit.
OK
The red host subsystem
The green host subsystem
In Table 34 on page 198, 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
Chapter 18: Troubleshooting T4000 Router Hardware Components
LED is lit on the craft interface, look at the LCD
HOST1 FAIL
command to check for alarms.
FAIL LED on the craft interface is lit.
LED on the craft interface is not lit.
OK
command.
CLI Message
Host host-number Removed
Host host-number Failure
197