# Backbone Fast Capability

Device > Configure > Spanning Tree > Backbone Fast Capability

This dialog box displays the BackboneFast settings for the spanning tree protocol configured on this device. The following information is displayed:

BackboneFast Status (stpxBackboneFastEnabled)

Indicates whether the BackboneFast capability is enabled on the device.

Note: This field is displayed when Spanning Tree Mode is set to "PVST+".

The following list specifies buttons in this dialog box, as well as their function:

- Click OK to continue.

- Click Apply to save the changes in the dialog box.

- Click Cancel to close the dialog box.

- Click Refresh to update the contents of the dialog box.

- Click Print to print the contents of the dialog box.

- Click Help to access online help.