Users Guide

Configure Per-VLAN Spanning Tree Plus
Configuring PVST+ is a four-step process.
1. Configure interfaces for Layer 2.
2. Place the interfaces in VLANs.
3. Enable PVST+.
4. Optionally, for load balancing, select a nondefault bridge-priority for a VLAN.
Related Configuration Tasks
• Modifying Global PVST+ Parameters
• Modifying Interface PVST+ Parameters
• Configuring an EdgePort
• Flush MAC Addresses after a Topology Change
• Prevent Network Disruptions with BPDU Guard
• Enabling SNMP Traps for Root Elections and Topology Changes
• Configuring Spanning Trees as Hitless
• PVST+ in Multi-Vendor Networks
• Enabling PVST+ Extended System ID
• PVST+ Sample Configurations
Enabling PVST+
When you enable PVST+, Dell Networking OS instantiates STP on each active VLAN.
1 Enter PVST context.
PROTOCOL PVST mode
protocol spanning-tree pvst
2 Enable PVST+.
PROTOCOL PVST mode
no disable
Disabling PVST+
To disable PVST+ globally or on an interface, use the following commands.
• Disable PVST+ globally.
PROTOCOL PVST mode
disable
• Disable PVST+ on an interface, or remove a PVST+ parameter configuration.
INTERFACE mode
no spanning-tree pvst
Example of Viewing PVST+ Configuration
To display your PVST+ configuration, use the show config command from PROTOCOL PVST mode.
Dell_E600(conf-pvst)#show config verbose
!
protocol spanning-tree pvst
Per-VLAN Spanning Tree Plus (PVST+) 611