# Graphing RSTP port statistics

Use this procedure to display RSTP port statistics.

## Procedure steps

1. From the navigation tree, double-click VLAN.

2. From the VLAN tree, double-click Spanning Tree.

3. From the Spanning Tree folder, click RSTP.

4. Select the Status tab.

5. Select a port and click Graph to get the statistics for the selected port.

## Variable definitions

The following table outlines the parameters of the RSTP Graph dialog box.

Table 1. RSTP Graph dialog box parameters
Variable | Value
--- | ---
RxRstBpduCount | The number of RST BPDUs that have been received on the port.
RxConfigBpduCount | The number of Config BPDUs that have been received on the port.
RxTcnBpduCount | The number of TCN BPDUs that have been received on the port.
TxRstBpduCount | The number of RST BPDUs that have been transmitted by this port.
TxConfigBpduCount | The number of Config BPDUs that have been transmitted by this port.
TxTcnBpduCount | The number of TCN BPDUs that have been transmitted by this port.
InvalidRstBpduRxCount | The number of invalid RSTP BPDUs that have been received on this port.
InvalidConfigBpduRxCount | The number of invalid Configuration BPDUs that have been received on this port.
InvalidTcnBpduRxCount | The number of invalid TCN BPDUs that have been received on this port.
ProtocolMigrationCount | The number of times this Port has migrated from one STP protocol version to another. The relevant protocols are STP-COMPATIBLE and RSTP.