Reference Guide

Per-VLAN Spanning Tree plus (PVST+) | 1165

Per-VLAN Spanning Tree plus (PVST+)

Overview

The FTOS implementation of PVST+ (Per-VLAN Spanning Tree plus) is based on the IEEE 802.1d

standard Spanning Tree Protocol, but it creates a separate spanning tree for each VLAN configured.

PVST+ (Per-VLAN Spanning Tree plus) is supported by FTOS on all Dell Force10 systems, as

indicated by the characters that appear below each command heading:

• C-Series:

• E-Series: e

• S-Series: s

Commands

The FTOS PVST+ commands are:

• disable

• description

• extend system-id

• protocol spanning-tree pvst

• show spanning-tree pvst

• spanning-tree pvst

• spanning-tree pvst err-disable

• tc-flush-standard

• vlan bridge-priority

• vlan forward-delay

• vlan hello-time

• vlan max-age

disable

c e s

Disable PVST+ globally.

Syntax

disable

Note: For easier command line entry, the plus (+) sign is not used at the command line.