8.9. Configure a Network Team Using the Text User Interface, nmtui

The text user interface tool

nmtui

can be used to configure teaming in a terminal window. Issue the following command to start the tool:

~]$  nmtui

The text user interface is appears appear . Any is prints invalid command print a usage message .

To navigate, use the arrow keys or press tab to step forwards and press Shift+tab to step back through the options. Press enter to select an option. The space bar toggles the status of a check box.

1. From the starting menu, select Edit a connection. selectAdd, theNew Connection screen is opens open .

   Figure 8.1. The NetworkManager Text User Interface Add a Team Connection menu

2. Select Team, theEdit connection screen is opens open .

   Figure 8.2. The NetworkManager Text User Interface Configuring a Team Connection menu

3. To add port interface to the team selectAdd, theNew Connection screen opens. Once the type of Connection has been chosen select the Create button to cause the team ‘sEdit connection display to appear.

   Figure 8.3. The NetworkManager Text User Interface Configuring a new Team Port Interface Connection menu

4. enter the required port’s device name or MAC address in the Device section. If required, enter a clone MAC address to be used as the team’s MAC address by selecting Show to the right of the Ethernet label. selectthe OK button .

   If the device is specify without a MAC address theDevice section will be automatically populated once the Edit connection window is reloaded, but only if it successfully finds the device.

   figure   8.4 .   The NetworkManager Text User Interface configure a Team ‘s Port Interface Connection menu

5. The name of the teamed port appears in the Slaves section. Repeat the above steps to add further port connections.

6. If custom port settings are to be applied select the Edit button under the JSON configuration section. This will launch a vim console where changes may be applied. Once finished write the changes from vim and then confirm that the displayed JSON string under JSON configuration matches what is intended.

7. Review and confirm the settings before selecting the OK button .

   Figure 8.5. The NetworkManager Text User Interface Configuring a Team Connection menu

See

section   8.13 , “ configure teamd Runners ”

for examples of JSON strings. Note that only the relevant sections from the example strings should be used for a team or port configuration using

nmtui

. Do not specify the

“Device”

as part of the JSON string. For example, only the JSON string after

“device”

but before

“port”

should be used in the Team JSON configuration field. All JSON strings relevant to a port must only be added in the port configuration field.