Specifications

show spanning-tree statistics
253
TxBPDUs : 2 RxBPDUs : 506
Forward Transit Times: 2 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
Port:0/21 Down
TxBPDUs : 0 RxBPDUs : 0
Forward Transit Times: 0 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
Port:0/22 Up
TxBPDUs : 1 RxBPDUs : 504
Forward Transit Times: 0 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
ChGr:8 Down
TxBPDUs : 0 RxBPDUs : 0
Forward Transit Times: 0 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
>
Figure 17-8 Example of displaying Single Spanning Tree statistics
> show spanning-tree statistics single
Date 2008/11/14 11:44:38 UTC
Time Since Topology Change:0 day 0 hour 5 minute 43 second
Topology Change Times: 4
Port:0/1 Up
TxBPDUs : 187 RxBPDUs : 0
Forward Transit Times: 1 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
Port:0/2 Down
TxBPDUs : 0 RxBPDUs : 0
Forward Transit Times: 0 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
:
ChGr:1 Up
TxBPDUs : 187 RxBPDUs : 0
Forward Transit Times: 1 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
ChGr:8 Down
TxBPDUs : 0 RxBPDUs : 0
Forward Transit Times: 0 RxDiscard BPDUs: 0
Discard BPDUs by reason
Timeout : 0 Invalid : 0
Not Support : 0 Other : 0
>