C H A P T E R 6

Troubleshooting

This chapter provides troubleshooting information for the Cisco uBR7225VXR universal broadband router and contains the following sections:

Overview, page 6-1

Problem Solving with Subsystems, page 6-2

Power Subsystem, page 6-4

Cooling Subsystem, page 6-4

Processor Subsystem, page 6-5

Verifying the Downstream Signal, page 6-7

Overview

This chapter contains instructions to help installers and technicians troubleshoot hardware installation.

Figure 6-1shows the general troubleshooting strategy used to troubleshoot the hardware. Refer to this flow chart as necessary and follow the steps to isolate hardware problems to a specific subsystem.

For cable-specific commands for the Cisco uBR7225VXR universal broadband router, refer to the Cisco IOS CMTS Cable Command Reference Guide at the following URL:

http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html

Resolve the problem if possible or contact the Cisco Technical Assistance Center.

Providing Information

If you are contacting Cisco TAC or your customer service representative, provide the following information:

Date you received your Cisco uBR7225VXR universal broadband 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

Cisco uBR7225VXR Universal Broadband Router Hardware Installation Guide

 

OL-17309-02

6-1

 

 

 

Page 119
Image 119
Cisco Systems UBR7225VXR specifications Troubleshooting, Overview, Providing Information