The STG tab displays the Spanning Tree Group statistics for the selected tab and the table describes the fields found in that tab.
InConfigBpdus
The number of Config BPDUS received.
InTcnBpdus
The number of Topology Change Notification BPDUS received.
InBadBpdus
The number of unknown or malformed BPDUS received.
OutConfigBpdus
The number of Config BPDUS transmitted.
OutTcnBpdus
The number of Topology Change Notification BPDUS transmitted.