HP 6120XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management G - Page 171
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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 4-26. Example of show spanning-tree debug-counters instance Command Output for All Ports in the CIST Instance 4-63