Troubleshooting Installation Problems; General Troubleshooting Tips; Troubleshooting Guide - Cisco 10008 Quick Start Manual

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Troubleshooting Installation Problems

This section contains general troubleshooting information to help you solve problems you might encounter during the
installation of the system. For any problems not covered in this section and for more detailed troubleshooting information, see
the Cisco 10000 Series Internet Router Troubleshooting

General Troubleshooting Tips

All Cisco 10008 field-replaceable units (FRUs) are hot-swappable. Procedures for removing and replacing the FRUs can be
found in the Cisco 10000 Series Internet Router Troubleshooting
Table 4 lists general FRU fault symptoms and recommendations.
Table 4 General Troubleshooting Tips
Symptom
System fails to power on
System fails to boot up properly
DC PEM problem
System experiences a critical alarm
(CRITICAL LED on the PRE is on)
System experiences a major alarm
(MAJOR LED on the PRE is on)
System experiences a minor alarm
(MINOR LED on the PRE is on)
You cannot establish a console or
Telnet connection to the system
Fan failure
System overheats
44
Guide.
Steps to Take
Check that:
• All power cords are properly connected to the Cisco 10008 router and at the power
connection end.
• The PEM power switches are in the On position.
For DC PEMs, the POWER LED should be on (green).
–
• The blower module is fully inserted (FANS OK LED is on [green]).
If the system has power, check the FAIL LED on the PRE and any information on the
alphanumeric display. If the FAIL LED is on, see the
Troubleshooting Guide.
• If the FAULT LED is on, see the

Troubleshooting Guide.

• If the MISWIRE LED is on, the –48V and return (RTN) wires are reversed. Power
off the PEM and reconnect the wires correctly (see the
the Cisco 10008 Router" section on page
Enter the show facility-alarm status command at the console.
Enter the show facility-alarm status command at the console.
Enter the show facility-alarm status command at the console.
For information about troubleshooting Ethernet connections, see the
Ethernet Connections" section on page
For information about troubleshooting the console port serial connections, see the
"Troubleshooting the Console Port Serial Connection" section on page
If a FAN FAILURE LED lights, perform the following steps:
• Reseat the blower module (see the
• Remove the rear safety cover and be sure that the blower module cable is connected
securely (see the Cisco 10000 ESR Blower Module
See the Cisco 10000 Series Internet Router Troubleshooting Guide
information.
Guide.
Cisco 10000 Series Internet Router
Cisco 10000 Series Internet Router
19).
45.
Cisco 10000 ESR Blower Module
"Connecting DC Power to
"Troubleshooting
46.
Installation).
Installation).
for additional