Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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3.1 Login-related problems
3.1.1 Forgotten login password
During operation, if a user forgets his or her password and is unable to log in to the Switch,
perform the following procedure:
 Restart the Switch, and then press CTRL+N three or more times.
By doing so, the startup configuration file and the password information are not
loaded.
 When the Switch has restarted, use the
password operation command to set a
password.
 Restart the Switch.
The startup configuration file and the set password information are loaded.
3.1.2 Forgotten login user ID
During operation, if the user forgets the login user ID and is unable to log in to the Switch,
perform the following procedure:
 Restart the Switch, and then press CTRL+N three or more times.
By doing so, the startup configuration file and the login user ID information are not
loaded.
 When the Switch has restarted, the user can use the login user ID
operator to log in
to the Switch.
 After logging in to the Switch, use the
rename user operation command to change
the login user ID.
 Restart the Switch.
The startup configuration file and the changed login user ID information are loaded.
3.1.3 Forgotten administrator mode password
During operation, if the user forgets the administrator mode password and is unable to
enter administrator mode, perform the following procedure:
 Restart the Switch, and then press CTRL+N three or more times.
By doing so, the startup configuration file and the password information are not
loaded.
 When the Switch has restarted, use the
password operation command to set the
device administrator password.
 Restart the Switch.
The startup configuration file and the set password information are loaded.