Troubleshooting The T1600 Scgs; Troubleshooting The T1600 Craft Interface - Juniper T1600 Hardware Manual

Troubleshooting the T1600 SCGs

Problem
Solution
Related
Documentation

Troubleshooting the T1600 Craft Interface

Problem
Copyright © 2010, Juniper Networks, Inc.
The following alarms and LEDs indicate a problem with an SCG:
The yellow FAIL LED on the SCG faceplate is lit.
The green LED on the SCG faceplate is not lit.
FAIL
A red alarm indicates that the SCG has failed or has been removed.
A yellow alarm indicates that the SCG is not online.
To troubleshoot the T1600 SCGs:
Check the LEDs on the faceplate of each SCG.
1.
Check the LEDs on the craft interface.
2.
Use the CLI to check for alarms.
3.
Standalone T1600 router—Issue the
alarms.
T1600 router in a routing matrix—Issue the
command to view the alarms.
In Table 35 on page 181, 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
Table 35: T1600 Chassis Alarm Messages for the SCGs
Alarm Type LCD Display Message
Red SCG
Red
SCG
Yellow
SCG
T1600 SONET Clock Generators (SCGs) Description on page 50
T1600 SCG LEDs on page 51
The following alarms, LEDs, and other conditions indicate a problem with the craft
interface:
None of the LEDs on the craft interface are lit.
A yellow alarm indicates that the craft interface has failed.
Chapter 16: Troubleshooting T1600 Router Hardware Components
show chassis alarms
show chassis alarms lcc lcc-number
command.
SCG-number Failure
SCG-number
Removed
SCG-number
Not Online
command to view the
CLI Message
181