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CHAPTER
5-1
Cisco uBR7100 Series and Cisco uBR7100E Series Universal Broadband Router Hardware Installation Guide
OL-5916-01
5
Troubleshooting the Installation
Your Cisco uBR7100 series router went through extensive testing before leaving the factory. However,
if you encounter problems starting the router, use the information in this chapter to help isolate the cause
of the problems. This chapter contains the following sections:
• Troubleshooting Overview, page 5-1
• Troubleshooting the Power Subsystem, page 5-4
• Troubleshooting the Processor Subsystem, page 5-4
• Troubleshooting the Cooling Subsystem, page 5-6
The procedures in this chapter assume that you are troubleshooting the initial system startup, and that
your router is in the original factory configuration. If you have removed or replaced components or
changed any default settings, the recommendations in this chapter might not apply. Make sure to review
the safety warnings listed in the publication that accompanied your Cisco uBR7100 series router before
using the troubleshooting procedures in this chapter.
Troubleshooting Overview
This section describes the troubleshooting methods used in this chapter and describes how
Cisco uBR7100 series routers are divided into subsystems for more efficient problem solving.
Figure 5-2 shows the general troubleshooting strategy described in this chapter. Refer to this chart, as
necessary, to follow the steps to isolate problems to a specific subsystem; then resolve the problem if
possible.
Before You Call for Technical Assistance
If you are unable to easily solve the problem, contact a customer service representative for assistance
and further instructions. Provide the representative with the following information:
• Date you received the router
• Chassis serial number
• Type of software and release number
• Brief description of the problem you are having
• Brief explanation of the steps you have taken to isolate and resolve the problem
• Maintenance agreement or warranty information