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Example 1
Example 2
1170
|
Per-VLAN Spanning Tree plus (PVST+)
Figure 46-2. show spanning-tree pvst brief Command
FTOS#show spanning-tree pvst vlan 3 brief
VLAN 3
Executing IEEE compatible Spanning Tree Protocol
Root ID
Priority 4096, Address 0001.e801.6aa8
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID
Priority 16384, Address 0001.e805.e306
Configured hello time 2, max age 20, forward delay 15
Interface
Name
PortID
Prio Cost
---------- -------- ---- ------
Gi 1/0
128.130
128
Gi 1/1
128.131
128
Gi 1/16
128.146
128
Gi 1/17
128.147
128
Interface
Name
Role
PortID
---------- ------ -------- ---- ------- --- ------- --------- ----
Gi 1/0
Root
128.130
Gi 1/1
Altr
128.131
Gi 1/16
Desg
128.146
Gi 1/17
Desg
128.147
Figure 46-3. show spanning-tree pvst vlan Command
FTOS#show spanning-tree pvst vlan 2
VLAN 2
Root Identifier has priority 4096, Address 0001.e805.e306
Root Bridge hello time 2, max age 20, forward delay 15
Bridge Identifier has priority 4096, Address 0001.e805.e306
Configured hello time 2, max age 20, forward delay 15
We are the root of VLAN 2
Current root has priority 4096, Address 0001.e805.e306
Number of topology changes 3, last change occurred 00:57:00
Port 130 (GigabitEthernet 1/0) is designated Forwarding
Port path cost 20000, Port priority 128, Port Identifier 128.130
Designated root has priority 4096, address 0001.e805.e3:06
Designated bridge has priority 4096, address 0001.e805.e3:06
Designated port id is 128.130, designated path cost 0
Number of transitions to forwarding state 1
BPDU sent 1567, received 3
The port is not in the Edge port mode
Port 131 (GigabitEthernet 1/1) is designated Forwarding
Port path cost 20000, Port priority 128, Port Identifier 128.131
Designated root has priority 4096, address 0001.e805.e3:06
Designated bridge has priority 4096, address 0001.e805.e3:06
Designated port id is 128.131, designated path cost 0
Number of transitions to forwarding state 1
BPDU sent 1567, received 0
The port is not in the Edge port mode
Port 146 (GigabitEthernet 1/16) is designated Forwarding
Port path cost 20000, Port priority 128, Port Identifier 128.146
Designated root has priority 4096, address 0001.e805.e3:06
Designated bridge has priority 4096, address 0001.e805.e3:06
Designated port id is 128.146, designated path cost 0
Number of transitions to forwarding state 1
BPDU sent 1578, received 0
The port is in the Edge port mode
Port 147 (GigabitEthernet 1/17) is designated Forwarding
Port path cost 20000, Port priority 128, Port Identifier 128.147
Designated root has priority 4096, address 0001.e805.e3:06
Designated bridge has priority 4096, address 0001.e805.e3:06
Designated port id is 128.147, designated path cost 0
Number of transitions to forwarding state 1
BPDU sent 1579, received 0
The port is in the Edge port mode
Sts Cost
--- ------- -------------------- --------
20000
FWD 20000
4096
20000
BLK 20000
4096
20000
FWD 20000
16384 0001.e805.e306
20000
FWD 20000
16384 0001.e805.e306
Prio Cost
Sts Cost
128
20000
FWD 20000
128
20000
BLK 20000
128
20000
FWD 20000
128
20000
FWD 20000
Designated
Bridge ID
PortID
0001.e801.6aa8
128.426
0001.e801.6aa8
128.427
128.146
128.147
Link-type Edge
P2P
No
P2P
No
P2P
Yes
P2P
Yes
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