Monitoring the Statistics on MSTP Topology Changes

Run the display stp [ process process-id ] [ instance instance-id ] topology-change command to view the statistics about MSTP topology changes.
In the case of a non-zero process, the stp process process-id command must be used to create a process before the display stp [ process process-id ] [ instance instance-id ] topology-change command is used.
Run the display stp [ process process-id ] [ instance instance-id ] [ interface interface-type interface-number | slot slot-id ] tc-bpdu statistics command to view the statistics about TC/TCN packets.
In the case of a non-zero process, the stp process process-id command must be used to create a process before the display stp [ process process-id ] [ instance instance-id ] [ interface interface-type interface-number | slot slot-id ] tc-bpdu statistics command is used.