H3C Technologies H3C SR8800 - Manual (Page 75)

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Troubleshooting
This chapter describes how to troubleshoot the SR8800 router installation failures.
The power supply system, fans, and cards of an SR8800 router have multiple LEDs, through which you
can locate the failures.
Configuration terminal problems
If the configuration environment setup is correct, the configuration terminal displays boot information
when the router is powered on. If the setup is incorrect, the configuration terminal displays nothing or
garbled text.
No terminal display
If the configuration terminal displays nothing when the router is powered on, verify that:
• The power supply system is operating correctly.
• The main processing unit (MPU) is operating correctly.
• The console cable has been connected to the console port of the MPU.
If no problem is found, the following reasons might apply:
• The console cable is connected to an incorrect serial interface. (The serial interface in use is not the
one set on the terminal.)
• The properties of the terminal are incorrect. Set the console terminal parameters as follows:
{
Bits per second—9600
{
Data bits—8
{
Parity—None
{
Stop bits—1
{
Flow control—None
{
Terminal Emulation—VT100
• The console cable fails. If the console cable fails, you can replace a cable.
Garbled terminal display
If terminal display is garbled, verify that the following settings are configured for the terminal, for
example, HyperTerminal:
• Baud rate—9600
• Data bits—8
• Parity—None
• Stop bits—1
• Flow control—None