Per-VLAN Spanning Tree Plus (PVST+)
Per-VLAN Spanning Tree Plus (PVST+)
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
Figure 38-1. Per-VLAN Spanning Tree
STI 1/2/3 root
FTOS supports three other variations of Spanning Tree, as shown in
Table 38-1. FTOS Supported Spanning Tree Protocols
Dell Force10 Term
Spanning Tree Protocol (STP)
Rapid Spanning Tree Protocol
(RSTP)
is supported on platforms:
Chapter 49, Spanning Tree Protocol
R2
2/12
1/22
R1
IEEE Specification
802.1d
802.1w
e c s z
(STP).
STI 1: VLAN 100
STI 2: VLAN 200
STI 2: VLAN 200
STI 3: VLAN 300
3/22
2/32
X
X
X
X
X
X
1/32
Table
Per-VLAN Spanning Tree Plus (PVST+) | 805
38
R3
3/12
38-1.