Configuration procedure

Configuring the asynchronous serial interface

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter synchronous/asynchronous serial interface view or asynchronous interface view.

  • Enter synchronous/asynchronous serial interface view and configure it to operate in asynchronous mode:

    1. interface serial interface-number

    2. physical-mode async

  • Enter asynchronous interface view:interface async interface-number

To use a synchronous/asynchronous serial interface, you must use a connector to connect the interface to the destination device.

3. Set the operating mode to flow mode.

async-mode flow

By default, an asynchronous serial interface operates in protocol mode.

4. (Optional.) Disable level detection.

undo detect dsr-dtr

By default, level detection is enabled.

Whether this command is required depends on the destination device.

5. Return to system view.

quit

N/A

Configuring the AUX/TTY line

Step

Command

Remarks

1. Enter AUX or TTY line view.

line { first-number1 [ last-number1 ] | { aux | tty } first-number2 [ last-number2 ] }

N/A

2. (Optional.) Enable the terminal service.

shell

By default, the terminal service is enabled on all user lines.

3. Set the transmission rate.

speed speed-value

By default, the transmission rate is 9600 bps.

The user line must use the same transmission rate as the destination device.

4. Enable stop bit setting consistency detection.

stopbit-error intolerance

By default, stop bit setting consistency detection is disabled.

5. Specify the number of stop bits.

stopbits { 1 | 1.5 | 2 }

By default, the number of stop bits is 1.

As a best practice, configure the user line to use the same number of stop bits as the destination device.

Configuring SSH redirect

Step

Command

Remarks

1. Enable SSH redirect.

ssh redirect enable

By default, SSH redirect is disabled.

2. (Optional.) Specify an SSH redirect listening port.

ssh redirect listen-port port-number

By default, the listening port number of SSH redirect is the absolute user line number plus 4000.

3. (Optional.) Set the idle-timeout timer for the redirected connection.

ssh redirect timeout time

The default idle-timeout timer is 360 seconds.

4. (Optional.) Terminate the redirected SSH connection.

ssh redirect disconnect

N/A

5. Return to system view.

quit

N/A

6. (Optional.) Associate the SSH redirect listening port with an IP address.

ssh ip alias ip-address port-number

By default, an SSH redirect listening port is not associated with an IP address.