Reference Guide

Per-VLAN Spanning Tree Plus (PVST+) | 723
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
Interface Designated
Name PortID Prio Cost Sts Cost Bridge ID PortID
---------- -------- ---- ------ --- ------- -------------------- --------
Gi 0/10 128.140 128 200000 FWD 0 32773 0001.e832.73f7 128.140
Gi 0/12 128.142 128 200000 DIS 0 32773 0001.e832.73f7 128.142
Interface
Name Role PortID Prio Cost Sts Cost Link-type Edge
---------- ------ -------- ---- ------- --- ------- ---------
------------------------
Gi 0/10 Desg 128.140 128 200000 FWD 0 P2P No
Gi 0/12 Dis 128.142 128 200000 DIS 0 P2P No
Related
Commands
protocol spanning-tree pvst
z
Enter the PVST+ mode to enable PVST+ on a device.
Syntax
protocol spanning-tree pvst
To disable PVST+, use the disable command.
Defaults
This command has no default value or behavior.
Command Modes
CONFIGURATION
Command
History
Example
Figure 34-1. Configuring with protocol spanning-tree pvst Command
FTOS#conf
FTOS(conf)#protocol spanning-tree pvst
FTOS(conf-pvst)#no disable
FTOS(conf-pvst)#vlan 2 bridge-priority 4096
FTOS(conf-pvst)#vlan 3 bridge-priority 16384
FTOS(conf-pvst)#
FTOS(conf-pvst)#show config
!
protocol spanning-tree pvst
no disable
vlan 2 bridge-priority 4096
vlan 3 bridge-priority 16384
FTOS#
Usage
Information
Once PVST+ is enabled, the device runs an STP instance for each VLAN it supports.
protocol spanning-tree pvst Enter SPANNING TREE mode on the switch.
S6000
Version 9.0.2.0 Introduced on the S6000.
Version 8.3.11.1 Introduced on Z9000.