No response from the serial port, Dealing with password loss – H3C Technologies H3C SR6600-X User Manual

Page 90

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80

1.

Verify that the Data bits field is set to 8 for the console terminal. If the Data bits field is set to 5 or

6, the console terminal will display garbled characters.

2.

Verify that the Bits per second field is set to 9600 bps. An incorrect Bits per second might also
cause the configuration terminal to display garbled characters.

No response from the serial port

If the serial port gives no response, verify that the serial port settings are correct.
For more information about the serial port settings, see "

Configuring basic settings

."

Dealing with password loss

CAUTION:

Dealing with console login password loss and user privilege level password loss from BootWare menus is
disruptive.

How to deal with console login password loss and user privilege level password loss depends on the

state of password recovery capability (see

Figure 80

). Password recovery capability controls console

user access to the device configuration and SDRAM from BootWare menus.

If password recovery capability is enabled, a console user can access the device configuration
without authentication and configure new passwords.

If password recovery capability is disabled, a console user must restore the factory-default
configuration before configuring new passwords. Restoring the factory-default configuration deletes

the main and backup next-startup configuration files.

To enhance system security, disable password recovery capability.

Figure 80 Dealing with password loss

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