Reference Guide

Per-VLAN Spanning Tree Plus (PVST+) | 709
Configuring Per-VLAN Spanning Tree Plus
Configuring PVST+ is a four-step process:
1. Configure interfaces for Layer 2.
2. Place the interface in VLANs.
3. Enable PVST+. See page 709.
4. Optionally, for load balancing, select a non-default bridge-priority for a VLAN. See page 710.
Related Configuration Tasks
• Modifying Global PVST+ Parameters
• Modifying Interface PVST+ Parameters
• Configuring an EdgePort
• Flushing MAC Addresses after a Topology Change
• Preventing Network Disruptions with BPDU Guard
• SNMP Traps for Root Elections and Topology Changes
• Configuring Spanning Trees as Hitless
• PVST+ in Multi-vendor Networks
• PVST+ Extended System ID
• PVST+ Sample Configurations
Enabling PVST+
When you enable PVST+, Dell networking OS instantiates STP on each active VLAN. To enable PVST+
globally:
Disabling PVST+
Display your PVST+ configuration by entering the command show config from PROTOCOL PVST
context, as shown in fig.
Step Task Command Syntax Command Mode
1 Enter PVST context. protocol spanning-tree pvst CONFIGURATION
2 Enable PVST+. no disable PROTOCOL PVST
Task Command Syntax Command Mode
Disable PVST+ globally. disable PROTOCOL PVST
Disable PVST+ on an interface, or remove a PVST+
parameter configuration.
no spanning-tree pvst INTERFACE