Troubleshooting The T640 Host Subsystem; Table 47: T640 Host Subsystem Alarm Messages - Juniper T640 Hardware Manual

Solution
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Troubleshooting the T640 Host Subsystem

Problem

Table 47: T640 Host Subsystem Alarm Messages

Component Alarm Type
Host subsystems Red
Yellow
Solution
Copyright © 2013, Juniper Networks, Inc.
To troubleshoot the SCGs:
Check the LEDs on the faceplate of each SCG and on the craft interface.
1.
Use the CLI to check for alarms.
2.
Standalone router—Issue the
Router in a routing matrix—Issue the
to view the alarms.
T640 SONET Clock Generators (SCGs) LEDs on page 50
T640 SONET Clock Generators (SCGs) Description on page 48
The following alarms and LEDs indicate a problem with a host subsystem control board
or Routing Engine:
The red host subsystem
The green host subsystem
A red alarm indicates that the host subsystem has been removed.
A yellow alarm indicates that the host subystem has failed.
In Table 47 on page 213, 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
LCD Message
Host host-number Removed
Host host-number Failure
To troubleshoot the T640 host subsystems:
Check the LEDs on the faceplate of each control board and Routing engine.
1.
Check the LEDs on the craft interface.
2.
Use the CLI to check for alarms.
3.
Standalone T640 router—Issue the
alarms.
T640 router in a routing matrix—Issue the
command to view the alarms.
Chapter 16: Troubleshooting T640 Router Hardware Components
show chassis alarms
show chassis alarms lcc lcc-number
LED on the craft interface is lit.
FAIL
OK LED on the craft interface is not lit.
command.
show chassis alarms
show chassis alarms lcc lcc-number
command to view the alarms.
command
CLI Message
Host host-number Removed
Host host-number Failure
command to view the
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