H3C Technologies H3C SecPath L1000-A Load Balancer - Manual (Page 57)

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No display on the configuration terminal
Symptom
After the L1000-A is powered on, the configuration terminal does not display anything.
Solution
To troubleshoot the configuration system failures first:
1. Verify that the power supply system is operating correctly.
2. Verify that the console cable is correctly connected.
If the cause cannot be located in the steps above, the possible reasons are as follows:
• The console cable is connected to an incorrect serial port (the serial port in use is not the one set
on the configuration terminal).
• The properties of the configuration terminal are incorrect. You must configure the configuration
terminal as follows: set Bits per second to 9600, Data bits to 8, Parity to None, Stop bits to 1, Flow
control to None, and Terminal Emulation to VT100.
• The console cable is broken.
Garbled characters on the configuration terminal
Symptom
After the L1000-A is powered on, the configuration terminal displays garbled characters.
Solution
Verify that the Data bits field is set to 8 for the configuration terminal. If the Data bits field is set to 5 or
6, the configuration terminal displays garbled characters.
No response from the serial port
Symptom
No boot information is displayed on the configuration terminal when the L1000-A starts up or restarts
up.
Solution
Verify that the serial port cable is in good condition and the serial port properties are correct.
For how to set the properties of the serial port, see "
Configuring communication parameters on the
terminal ."
Password loss
For troubleshooting console login password loss and user privilege level password loss, see H3C LB
Products System Management Configuration Guide.