Pvst+ Sample Configurations - Dell S6100 Configuration Manual

Figure 106. PVST+ with Extend System ID
• Augment the bridge ID with the VLAN ID.
PROTOCOL PVST mode
extend system-id
Example of Viewing the Extend System ID in a PVST+ Configuration
Dell(conf-pvst)#do show spanning-tree pvst vlan 5 brief
VLAN 5
Executing IEEE compatible Spanning Tree Protocol
Root ID Priority 32773, Address 0001.e832.73f7
Root Bridge hello time 2, max age 20, forward delay 15
Bridge ID Priority 32773 (priority 32768 sys-id-ext 5), Address 0001.e832.73f7
We are the root of Vlan 5
Configured hello time 2, max age 20, forward delay 15

PVST+ Sample Configurations

The following examples provide the running configurations for the topology shown in the previous illustration.
Example of PVST+ Configuration (R1)
interface TenGigabitEthernet 1/1/1/1
no ip address
switchport
no shutdown
!
interface TenGigabitEthernet 1/1/1/2
no ip address
switchport
no shutdown
!
protocol spanning-tree pvst
no disable
vlan 100 bridge-priority 4096
interface Vlan 100
no ip address
tagged TenGigabitEthernet 1/1/1/1,1/1/1/2
no shutdown
!
interface Vlan 200
662 Per-VLAN Spanning Tree Plus (PVST+)