HP ProCurve Switch 6120G/XG Management Manual page 162

ProCurve(config)# show spanning-tree debug-counters instance 0
Status and Counters - CIST Common Debug Counters Information
MST Instance ID : 0
Counter Name
--------------------------------- ---------------- --------------
Invalid BPDUs
Errant BPDUs
MST Config Error BPDUs
Looped-back BPDUs
Starved BPDUs
Exceeded Max Age BPDUs
Exceeded Max Hops BPDUs
Topology Changes Detected
Topology Changes Tx
Topology Changes Rx
Topology Change ACKs Tx
Topology Change ACKs Rx
TCN BPDUs Tx
TCN BPDUs Rx
CFG BPDUs Tx
CFG BPDUs Rx
RST BPDUs Tx
RST BPDUs Rx
MST BPDUs Tx
MST BPDUs Rx
Figure 4-26. Example of show spanning-tree debug-counters instance Command Output for All Ports in the
CIST Instance
Multiple Instance Spanning-Tree Operation
Troubleshooting an MSTP Configuration
Aggregated Value Collected From
0 Ports
172603 Ports
0 Ports
0 Ports
0 Ports
0 Ports
0 Ports
1 Ports
3 Ports
2 Ports
0 Ports
0 Ports
0 Ports
0 Ports
0 Ports
0 Ports
0 Ports
0 Ports
5 Ports
172577 Ports
4-63