Dell Force10 Z9000 - Per-VLAN Spanning Tree Plus (PVST+); Protocol Overview

Per-VLAN Spanning Tree Plus (PVST+) | 709
34
Per-VLAN Spanning Tree Plus (PVST+)
Per-VLAN Spanning Tree Plus (PVST+) is supported platforms: e c s z
Protocol Overview
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 on
Spanning Tree, see Chapter 44, Spanning Tree Protocol (STP).
Figure 34-1. Per-VLAN Spanning Tree
R2
R3
R1
2/32
1/22
1/32
2/12
3/22
3/12
STI 3: VLAN 300
STI 1: VLAN 100
STI 2: VLAN 200STI 2: VLAN 200
Forwarding
X
X
X
X
X
X
STI 1/2/3 root
Blocking