etsysStpDiagCistPortStpCfgBpduTxTcFlagSet 1.3.6.1.4.1.5624.1.2.29.1.3.1.1.18

The total number of 802.1D Configuration BPDUs transmitted on this port with the Topology Change flag set. These BPDUs are included in the overall count of 802.1D Configuration BPDUs transmitted in the etsysStpDiagCistPortStpCfgBpduRx object.