Dell Force10 S4810P - Per-VLAN Spanning Tree Plus (PVST+); Protocol Overview

Per-VLAN Spanning Tree Plus (PVST+) | 805
38
Per-VLAN Spanning Tree Plus (PVST+)
Per-VLAN Spanning Tree Plus (PVST+) is supported on 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 49, Spanning Tree Protocol (STP).
Figure 38-1. Per-VLAN Spanning Tree
FTOS supports three other variations of Spanning Tree, as shown in Table 38-1.
Table 38-1. FTOS Supported Spanning Tree Protocols
Dell Force10 Term IEEE Specification
Spanning Tree Protocol (STP) 802.1d
Rapid Spanning Tree Protocol
(RSTP)
802.1w
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