Field Descriptions In Mstp Debug Command Output - HP ProCurve Switch 6120G/XG Management Manual

Multiple Instance Spanning-Tree Operation
Troubleshooting an MSTP Configuration
ProCurve(config)# show spanning-tree debug-counters instance 2 ports a15
Status and Counters - MSTI Port(s) Debug Counters Information
MST Instance ID : 2
Port : A15
Counter Name
--------------------------- ---------- -----------------
Starved MSTI MSGs
Exceeded Max Hops MSTI MSGs 0
Topology Changes Detected
Topology Changes Tx
Topology Changes Rx
MSTI MSGs Tx
MSTI MSGs Rx
Figure 4-28. Example of show spanning-tree debug-counters instance ports Command Output for One Port
in an MST Instance
Table 4-1. MSTP Debug Command Output: Field Descriptions
Field
Invalid BPDUs
Errant BPDUs
4-66
Value
0
1
3
2
5
173489

Field Descriptions in MSTP Debug Command Output

Table 4-1 contains descriptions of the debugging information displayed in the
output of show spanning-tree debug-counters commands.
Description
Number of received BPDUs that failed standard MSTP (802.1Q-REV/D5.0 14.4) validation
checks and were dropped. This counter is maintained by the CIST (default MST instance 0)
on a per-port basis.
Number of received BPDUs that were dropped on a port that is configured to not expect
BPDU packets. This counter is maintained by the CIST (default MST instance 0 in the
network) on a per-port basis and is incremented each time a BPDU packet is received on
a port configured with the BPDU filter to ignore incoming BPDU packets (spanning-tree
bpdu-filter command) or the BPDU protection feature to disable the port when BPDU
packets are received (spanning-tree bpdu-protection command).
Last Updated
02/09/07 17:40:59
02/09/07 17:41:03
02/09/07 17:41:01
02/09/07 17:41:03
02/13/07 18:03:52