Foundry Networks FESX User Manual

December 2005 © Foundry Networks, Inc. 7 - 1
Chapter 7
Configuring Spanning Tree Protocol (STP)
and IronSpan Features
This chapter describes how to configure Spanning Tree Protocol (STP) and IronSpan parameters on Foundry
Layer 3 Switches using the CLI. IronSpan features extend the operation of standard STP, enabling you to fine tune
standard STP and avoid some of its limitations.
Chapter Contents
Table 7.1: Chapter Contents
Description See Page
Overview of STP 7-2
Configuring standard STP parameters 7-2
STP Parameters and defaults 7-2
Enabling and disabling STP 7-4
Changing STP bridge and port parameters 7-5
STP Protection enhancement 7-6
Displaying STP information 7-8
Configuring IronSpan features 7-16
Fast Port Span 7-16
802.1W Rapid Spanning Tree (RSTP) 7-18
802.1W Draft 3 RSTP (both 802.1W Draft 3 and full
802.1W are supported)
7-53
Single-instance STP (SSTP) 7-56
STP per VLAN group 7-58
Per VLAN Spanning Tree (PVST)/PVST+ compatibility 7-61

Foundry Networks FESX Specifications

General

Brand	Foundry Networks
Model	FESX
Category	Switch
Language	English