Administrator Guide
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 congure a
separate spanning tree instance for each virtual local area network (VLAN).
Protocol Overview
PVST+ is a variation of spanning tree — developed by a third party — that allows you to congure a separate spanning tree instance for
each virtual local area network (VLAN).
For more information about spanning tree, refer to the Spanning Tree Protocol (STP) chapter.
Figure 95. Per-VLAN Spanning Tree
The Dell Networking OS supports three other variations of spanning tree, as shown in the following table.
38
Per-VLAN Spanning Tree Plus (PVST+) 625