HP 3500 Series Advanced Traffic Management Guide

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Multiple Instance Spanning-Tree Operation
Troubleshooting an MSTP Configuration
Figure 3-32. Example of show spanning-tree debug-counters instance ports Command Output for One Port
in the CIST Instance
HP Switch(config)# show spanning-tree debug-counters instance 0 ports a15
Status and Counters - CIST Port(s) Debug Counters Information
MST Instance ID : 0
Port : A15
Counter Name Value Last Updated
--------------------------- ---------- -----------------
Invalid BPDUs 0
Errant BPDUs 0
MST Config Error BPDUs 0
Looped-back BPDUs 0
Starved BPDUs 0
Exceeded Max Age BPDUs 0
Exceeded Max Hops BPDUs 0
Topology Changes Detected 1 02/09/07 17:40:59
Topology Changes Tx 3 02/09/07 17:41:03
Topology Changes Rx 2 02/09/07 17:41:01
Topology Change ACKs Tx 0
Topology Change ACKs Rx 0
TCN BPDUs Tx 0
TCN BPDUs Rx 0
CFG BPDUs Tx 0
CFG BPDUs Rx 0
RST BPDUs Tx 0
RST BPDUs Rx 0
MST BPDUs Tx 5 02/09/07 17:41:03
MST BPDUs Rx 173540 02/13/07 18:05:34

HP 3500 Series Specifications

General

Model	HP 3500 Series
Layer	Layer 3
MAC Address Table Size	16, 000 entries
Type	Managed
Uplink	SFP
PoE	Optional
Management	Web, CLI, SNMP
Routing Protocol	Static, RIP
Power Supply	Internal
Form Factor	1U rack-mountable
Jumbo Frame Support	Yes
Operating Temperature	32°F to 113°F (0°C to 45°C)
Ports	24 or 48 10/100/1000 ports