# Uplink Fast Capability

Device > Configure > Spanning Tree > Uplink Fast Capability

This dialog box displays the UplinkFast settings for the spanning tree protocol configured on this device.

To view the definition for a particular MIB variable, click the appropriate link from the following list:

- UplinkFast Status (stpxUplinkFastEnabled)

- Station Learning Rate (stpxUplinkStationLearningGenRate)

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.

UplinkFast Status (stpxUplinkFastEnabled)

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

Note: This field is not displayed when Spanning Tree Mode is set to "MST".

Station 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.

Note: This field is not displayed when Spanning Tree Mode is set to "MST".