Redundancy Status - Juniper E SERIES BROADBAND SERVICES ROUTERS 11.3.X - ERX HARDWARE GUIDE REV 26-9-2010 Hardware Manual

ERX 11.3.x Hardware Guide
Table 12: Troubleshooting Abnormal LED Activity on Modules (continued)
Diagnostic Signs
FAN OK LED does not
light
FAN FAIL LED lights
LINK LED is not lit
RED ALM is lit
YEL ALM is lit
NOTE: This LED is not
functional on the HSSI
line module.
System does not boot.
Modules held offline.
FAIL LED lights.
No LED indications or
obvious signs.

Redundancy Status

102
Possible Problems
Fan is not working properly or
has slowed down.
Fan needs replacement.
Ethernet connection is down.
System does not recognize a
port connection.
Cabling is not connected
properly.
Cable is faulty.
Clocking problem exists.
Far end receive failure (FERF)
exists.
A slot group is overloaded.
System temperature is too high.
Vents are blocked.
Fans are not operating.
You can determine the redundancy state of line modules by examining the ONLINE and
REDUNDANT status LEDs (ERX7xx and ERX14xx models only). See Table 13 on page 103.
Actions
Contact Juniper Networks Customer Service; the system must
be serviced.
1. Make sure that Ethernet cables are properly connected to
both the Ethernet port and the appropriate network device.
2. Contact Juniper Networks Customer Service.
1. Make sure that all cables are firmly plugged into the ports
and the attached network device.
2. Verify that cables are clean.
3. Test for faulty cables.
4. Verify clock source and configuration.
5. Reset system.
NOTE: Problem is corrected when normal LED activity
occurs.
1. Correct FERF problem.
2. Reset system.
NOTE: Problem is corrected when normal LED activity
occurs.
1. Issue the show version command to display module status.
2. Review section on proper slot group configuration in
"Installing Modules" on page 31.
3. Reconfigure system with correct slot group configuration.
4. Reset system.
1. Look at your console for a message indicating the problem.
If you have the system log set to a severity of WARNING or
higher, a Warning message indicates the failure.
2. Issue the show environment command to display the
temperatures. If the temperature is too high, power down
the system.
3. Regulate temperature.
4. Reset system.
Copyright © 2010, Juniper Networks, Inc.