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3-82

Multiple Instance Spanning-Tree Operation

STP Loop Guard

Figure 3-42. Example of Detailed Spanning-tree Configuration Information

Spanning Tree information for the Loop Guard port is shown in Figure 3-43.

HP Switch(config)# show spanning-tree detail

Status and Counters - CST Port(s) Detailed Information

Port : 1

Status : Up

Port : 2

Status : Up

BPDU Protection : No

BPDU Filtering : No

PVST Protection : No

PVST Filtering : No

Errant BPDU Count : 0

Root Guard : No

Loop Guard : Yes

TCN Guard : No

MST Region Boundary : Yes

External Path Cost : 20000

External Root Path Cost : 40000

Administrative Hello Time : Global

Operational Hello Time : 2

AdminEdgePort : No

Auto Edge Port : Yes

OperEdgePort : No

AdminPointToPointMAC : True

OperPointToPointMAC : Yes

Aged BPDUs Count : 0

Loop-back BPDUs Count : 0

TC ACK Flag Transmitted : 0

TC ACK Flag Received : 1

MST MST CFG CFG TCN TCN

BPDUs Tx BPDUs Rx BPDUs Tx BPDUs Rx BPDUs Tx BPDUs Rx

---------- ---------- ---------- ---------- ---------- ----------

3 0 24354 1682 0 13

STP Loop Guard Enabled

HP ProCurve 5412ZL User Manual

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