Cisco XR 12406 - Manual (Page 131)

C H A P T E R
4-1
Cisco XR 12406 Router Installation Guide
OL-13831-01
4
Troubleshooting the Installation
This chapter provides troubleshooting guidelines for Cisco XR 12406 router. If
the solutions provided in this chapter do not make the router fully functional,
contact your Cisco service representative for assistance.
• Identifying Startup Problems, page 4-1
• Problem-Solving with Subsystems, page 4-4
• Troubleshooting an AC Power Subsystem, page 4-6
• Troubleshooting a DC Power Subsystem, page 4-9
• Troubleshooting the Processor Subsystem, page 4-13
• Troubleshooting the Cooling Subsystem, page 4-31
Identifying Startup Problems
Startup problems are commonly caused by the power source failures or by a card
that is not seated properly in the backplane. Although an overtemperature
condition is unlikely at initial startup, the environmental monitoring functions are
included here because they also monitor internal voltages.