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Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03
Bits in the Software Configuration Register 4-8
Recovering a Lost Password 4-11
Problem Solving with Subsystems 4-14
Identifying Startup Problems 4-15
Using LEDs to Gather Information 4-16
AC-Input Power Supply LEDs 4-17
DC-Input Power Entry Module LEDs 4-19
Blower Module LEDs 4-20
Alarm Card LEDs 4-21
RP Alphanumeric LED Displays 4-22
Troubleshooting the Power Subsystem 4-23
Troubleshooting the AC-Input Power Subsystem 4-23
Troubleshooting the DC-Input Power Entry Module 4-26
Troubleshooting the Processor Subsystem 4-28
Troubleshooting the RP 4-28
Troubleshooting the Line Cards 4-31
Troubleshooting by Using the Alarm Cards 4-33
Monitoring Alarm Card Status 4-33
Monitoring Switch Fabric Status 4-33
Monitoring Critical, Major, and Minor Alarm Status 4-34
Troubleshooting the Cooling Subsystem 4-35
CHAPTER
5 Field Diagnostics for the Cisco 12000 Series Router 5-1
Diagnostics Overview 5-2
FPGA Overview 5-3
Using Diagnostics 5-6
Obtain and Place the Diagnostics Image 5-6
Upgrade the FPGA Image on a Line Card 5-7
Using the diag Command 5-8