Reference Guide
1198 | Per-VLAN Spanning Tree Plus (PVST+)
www.dell.com | support.dell.com
---------- ------ -------- ---- ------- --- ------- --------- ----
Gi 1/0 Root 128.130 128 20000 FWD 20000 P2P No 
Gi 1/1 Altr 128.131 128 20000 BLK 20000 P2P No 
Gi 1/16 Desg 128.146 128 20000 FWD 20000 P2P Yes 
Gi 1/17 Desg 128.147 128 20000 FWD 20000 P2P Yes 
Example
(vlan)
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 occured 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
Example
(with EDS & LBK)
FTOS#show spanning-tree pvst vlan 2 interface gigabitethernet 1/0
GigabitEthernet 1/0 of VLAN 2 is LBK_INC discarding 
Edge port:no (default) port guard :none (default) 
Link type: point-to-point (auto) bpdu filter:disable (default) 
Bpdu guard :disable (default) 
Bpdus sent 152, received 27562
Interface Designated 
 Name PortID Prio Cost Sts Cost Bridge ID PortID 
--------- -------- ---- ------- --- ------- -------------------- --------










