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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 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 101. Per-VLAN Spanning Tree
Per-VLAN Spanning Tree Plus (PVST+)
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