# Spanning Tree

Device>Monitor>Spanning Tree

Use the Spanning Tree options to display Uplink Fast Convergence and Backbone Fast Convergence transition activity for the device.

Uplink Fast Convergence

Backbone Fast Convergence

# Backbone Fast Convergence

Device>Monitor>Spanning Tree>Backbone Fast Convergence

Use this option to display Backbone Fast Convergence activity for the device.

In Inferior BPDUs (stpxBackboneFastInInferiorBPDUs)

The number of inferior BPDUs received by the switch.

In RLQ Request PDUs (stpxBackboneFastInRLQRequestPDUs)

The number of Root Link Query request PDUs received by the switch.

In RLQ Response PDUs (stpxBackboneFastInRLQResponsePDUs)

The number of Root Link Query response PDUs received by the switch.

Out RLQ Request PDUs (stpxBackboneFastOutRLQRequestPDUs)

The number of Root Link Query request PDUs transmitted by the switch.

Out RLQ Response PDUs (stpxBackboneFastOutRLQResponsePDUs)

The number of Root Link Query response PDUs transmitted by the switch.

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.