Users Guide
46
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 VLAN.
For more information about Spanning Tree, refer to Spanning Tree Protocol (STP).
Protocol Overview
Figure 110. Per-VLAN Spanning Tree
The Dell Networking OS supports three other variations of spanning tree, as shown in the following table.
Table 63. Spanning Tree Variations Dell Networking OS Supports
Dell Networking Term IEEE Specication
Spanning Tree Protocol (STP) 802 .1d
Rapid Spanning Tree Protocol (RSTP) 802 .1w
Per-VLAN Spanning Tree Plus (PVST+)
689