Command Reference Guide

76 ● display bridge spanning tree 3Com Router 5000 Family and Router 6000 Family
Command Reference
display bridge spanning tree
Purpose Use the display bridge spanning-tree command to view STP state and
statistics for traffic analysis and control.
Syntax display bridge spanning-tree
Parameters None
Example Display STP state and statistics.
[Router] display bridge spanning-tree
Current root is me.
Bridge Identifier’s priority: 32768 address: 00-e0-fc-0c-a2-91
Configured timer Hello: 2 Max Aging time: 20
Forward: 15 Root port: 0 (All Ports)
cost of root path: 0 Topology change flag: Not Set
Topology change detected flag: Not Set
Times: hold: 1 topology change: 35
notification: 2 hello: 2
max age: 20 forward : 15
aging: 300
Timers: hello: 1 topology change: 0
notification: 0
Port 1:
Port name: Ethernet1/0/0 State: Disable
Port path cost: 19 Port priority: 128
Designated root’s priority: 32768 address: 00-e0-fc-0c-a2-91
Designated bridge’s priority: 32768 address: 00-e0-fc-0c-a2-91
Designated port: 1 Designated path cost: 0
Timers: message age: 0 forward delay: 0
hold: 0 Sent BPDU: 0
Received BPDU: 0
Port 2:
Port name: Ethernet4/0/0 State: Forwarding
Port path cost: 1000 Port priority: 128
Designated root’s priority: 32768 address: 00-e0-fc-0c-a2-91
Designated bridge’s priority: 32768 address: 00-e0-fc-0c-a2-91
Designated port: 2 Designated path cost: 0
Timers: message age: 0 forward delay: 0
hold: 0 Sent BPDU: 33051
Received BPDU: 0
Table 1 Description on the fields of the display bridge spanning-tree
Field Description
Bridge Identifier’s
priority:
Bridge priority
address: MAC address of the bridge
Configured timer Hello The Hello timer configured on the bridge
Max Aging time Max Age timer
Root port Root port