Universal Broadband Router Hardware Installation Guide

4-5
Cisco uBR10012 Universal Broadband Router Hardware Installation Guide
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Chapter 4 Troubleshooting the Installation
Troubleshooting the Console Port Serial Connection
Enter configuration commands, one per line. End with CNTL/Z.
router(config-if)# int fast0/0/0
router(config-if)# no shut
router(config-if)# exit
router(config)# exit
router#
– Check that the Ethernet port in question has a valid IP address assigned to it.
Note The Cisco uBR10012 router also has an internal Ethernet interface, Ethernet0/0/0, which PRE
processors and line cards use to transfer packets between cards. This interface is not user-configurable,
although you can see the configuration and run-time information using the show interface command.
For more information about configuring Ethernet ports, refer to the Cisco uBR10012 Router Software
Configuration Guide at the following URL:
http://www.cisco.com/en/US/docs/cable/cmts/ubr10012/configuration/guide/scg.html
If the cable, connections, power, and configuration all check out, and you still cannot connect to the
Ethernet port on the module, you probably need to replace the PRE. Contact the Cisco TAC for further
assistance.
Troubleshooting the Console Port Serial Connection
If the terminal connected to the Cisco uBR10012 router console port appears frozen or fails to work
properly, check for the following problems:
• Check the console cable and make sure it is properly connected to the correct console port on the
PRE, and to your terminal equipment at the other end.
• Verify that you are using the right type of cable and adapter. For additional information about cable
pin-outs, refer to the
“Connecting the Console Port and Auxiliary Port” section on page 3-49.
• To be sure the cable is not defective or broken, replace the cable with another high quality cable if
possible.
• Check that your terminal equipment is working properly and configured with the correct settings for
the console port. The default console port settings are:
– 9600 baud
– 8 data bits
– 1 stop bit
– No parity
– No flow control
• Check the LEDs on the PRE to make sure that it is powered up properly.
• If the cable, connections, power, and terminal settings all check out and you still cannot connect to
the console port on the module, you probably need to replace the PRE. Contact the Cisco TAC for
further assistance. See the
“Obtaining Documentation and Submitting a Service Request” section on
page xxi.