HP 5400ZL User Manual
Page 189

Multiple Instance Spanning-Tree Operation
Troubleshooting an MSTP Configuration
ProCurve(config)# show spanning-tree debug-counters instance 0
Status and Counters - CIST Common Debug Counters Information
MST Instance ID : 0
Counter Name
Aggregated Value Collected From
--------------------------------- ---------------- --------------
Invalid BPDUs
0
Ports
Errant BPDUs
172603 Ports
MST Config Error BPDUs
0
Ports
Looped-back BPDUs
0
Ports
Starved BPDUs
0
Ports
Exceeded Max Age BPDUs
0
Ports
Exceeded Max Hops BPDUs
0
Ports
Topology Changes Detected
1
Ports
Topology Changes Tx
3
Ports
Topology Changes Rx
2
Ports
Topology Change ACKs Tx
0
Ports
Topology Change ACKs Rx
0
Ports
TCN BPDUs Tx
0
Ports
TCN BPDUs Rx
0
Ports
CFG BPDUs Tx
0
Ports
CFG BPDUs Rx
0
Ports
RST BPDUs Tx
0
Ports
RST BPDUs Rx
0
Ports
MST BPDUs Tx
5
Ports
MST BPDUs Rx
172577 Ports
Figure 4-31. Example of show spanning-tree debug-counters instance Command Output for All Ports in the
CIST Instance
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