7Troubleshooting the Installation
This section contains information to help installers and technicians troubleshoot the hardware installation.
Figure 13 shows 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 uBR7246VXR universal broadband router, refer to Cisco Broadband Cable Command Reference Guide at the following URL:
http://www.cisco.com/en/US/products/hw/cable/ps2217/prod_command_reference_list.html
Resolve the problem if possible or contact the Cisco Technical Assistance Center.
Figure 13 Troubleshooting Strategy for Startup Problems
Turn on
system power
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DC OK | No | Troubleshoot | DC OK | No |
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controller LEDs |
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I/O | No | Troubleshoot I/O | I/O | No |
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controller | controller |
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state with port |
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adapter LEDs |
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Port | No | Troubleshoot | Port | No | Obtain |
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adapter | adapter |
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enabled |
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LEDs |
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on? |
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Yes |
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| End |
Identify Startup Problems
Startup problems are commonly caused by source power problems or a board (network processing engine, I/O controller, port adapter, or cable interface line card) that is not properly connected to the midplane. With the exception of the fan tray and network processing engine, LEDs indicate all system states in the startup sequence. By checking the state of the LEDs, you can determine when and where the system failed in the startup sequence.
1.First check that you are properly plugged into the power source. Then verify that the cards are properly installed. If the port adapter ENABLED LED remains off after you have verified that it is properly installed, verify that the hardware revision of the port adapter in question is supported by the Cisco uBR7246VXR. Use the show diag command (Router# show diag slot) to determine the type of port adapter and then check the product website to determine compatibility.
2.The system cannot operate unless the I/O controller and network processing engine are installed properly. Check that these modules are properly installed in the chassis.
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