C H A P T E R 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
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•Troubleshooting an AC Power Subsystem, page
•Troubleshooting a DC Power Subsystem, page
•Troubleshooting the Processor Subsystem, page
•Troubleshooting the Cooling Subsystem, page
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.
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