# Spanning Tree Protocol

Device>Configure>Spanning Tree

Use this feature to set spanning tree parameters that enable the device’s learning bridge to dynamically halt loops in the network (by shutting down selected bridge interfaces) before creating a spanning tree path.

STP UplinkFast (stpxUplinkFastEnabled)

Displays whether STP UplinkFast is enabled on the device, as true or false.

STP UplinkFast Learning Rate (stpxUplinkStationLearningGenRate)

Maximum number of station-learning frames that this device will generate in each 100 millisecond period after an UplinkFast transition. The default is 15.

Backbone Fast (stpxBackboneFastEnabled)

Indicates whether the BackboneFast capability is enabled on the device.

Click Apply to make your changes take effect, or click Cancel to close the dialog box without making any changes. Click Print to print the contents of the dialog box.