No Response From The Serial Port; Dealing With Console Login Password Loss - H3C SR6616 Installation Manual

Solution
To resolve the issue:
Make sure the Data bits field is set to 8 for the console terminal. If the Data bits field is set to 5
1.
or 6, the console terminal will display garbled characters.
Make sure the Bits per second field is set to 9600 kbps. An incorrect bits per second might
2.
also cause the configuration terminal to display garbled characters.
If the issue persists, contact H3C Support.
3.

No response from the serial port

Symptom
The serial port gives no response.
Solution
To resolve the issue:
Verify that the serial port settings are correct. For more information about the serial port settings,
1.
see "Setting terminal
If the issue persists, contact H3C Support.
2.

Dealing with console login password loss

CAUTION:
Dealing with console login password loss from BootWare menus requires device reboot and is
service-disruptive.
How to deal with console login password loss depends on the state of password recovery capability
(see Figure
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.
parameters."
89). Password recovery capability controls console user access to the device
87