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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 congure a
separate spanning tree instance for each virtual local area network (VLAN).
Protocol Overview
A sample PVST+ topology is shown below.
For more information about spanning tree, refer to the Spanning Tree Protocol (STP) chapter.
Figure 103. Per-VLAN Spanning Tree
The Dell Networking OS supports three other versions of spanning tree, as shown in the following table.
36
694 Per-VLAN Spanning Tree Plus (PVST+)