Cisco Systems Cisco uBR10012 manual Troubleshooting the Console Port Serial Connection

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.

Cisco uBR10012 Universal Broadband Router Hardware Installation Guide

OL-18259-01 4-5