Reference Guide

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Per-VLAN Spanning Tree Plus (PVST+)
Per-VLAN spanning tree plus (PVST+) is a variation of Spanning Tree — developed by a third party — that
allows you to configure a separate Spanning Tree instance for each VLAN.
For more information about Spanning Tree, refer to Spanning Tree Protocol (STP).
Protocol Overview
Figure 107. Per-VLAN Spanning Tree
The Dell Networking OS supports three other variations of spanning tree, as shown in the following table.
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Per-VLAN Spanning Tree Plus (PVST+)