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8-242 C122-E003-02EN
GSWB
CHAPTER 8 CLI Operations
• Displays output of show spanning-tree statistics interface
Interface statistical information
z Interface information:
The port number and interface name are displayed:
- The port number ranges from 1 to 33.
- Interface name
The interface name is displayed following selection from GigabitEthernet 0/1-8,
IOU 0 0-7 1, TenGigabitEthernet 1/1-2, port-channel 1-7, and none.
If no port-channel port has been created or no TenGigabitEthernet is mounted,
"none" is displayed for the interface name.
z changed to root port: Root port count
The number of changes into the root port is displayed.
z changed to designated port: Designated port count
The number of changes into the designated port is displayed.
# show spanning-tree statistics interface GigabitEthernet 0/1
Interface:
17 GigabitEthernet 0/1
changed to root port 1
changed to designated port 0
changed to forwarding state 1
message age timer timeout 0
port request enable 1
port request disable 0
Config BPDU:
sent 3
received 3417
discarded 0
TC flag ON Config BPDU received 0
TCN BPDU:
sent 3
received 3417
discarded 0
BPDU discarded by system error 0
Trigger for changing to root bridge:
message age timeout 0
port down 0
Trigger for changing to not root bridge:
new Config BPDU received 0
#