Cisco Catalyst 4500 Series Software Configuration Guide

CHAPTER
26-1
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
26
Configuring Optional STP Features
This chapter describes the Spanning Tree Protocol (STP) features supported on the switch. It also
provides guidelines, procedures, and configuration examples. To configure STP, see Chapter 23,
“Configuring STP and MST.”
This chapter includes the following major sections:
• About Root Guard, page 26-2
• Enabling Root Guard, page 26-2
• About Loop Guard, page 26-3
• Enabling Loop Guard, page 26-5
• About EtherChannel Guard, page 26-6
• Enabling EtherChannel Guard (Optional), page 26-6
• About STP PortFast Port Types, page 26-7
• Enabling PortFast Port Types, page 26-8
• About Bridge Assurance, page 26-11
• Configuring Bridge Assurance, page 26-13
• About BPDU Guard, page 26-15
• Enabling BPDU Guard, page 26-15
• About PortFast Edge BPDU Filtering, page 26-16
• Enabling PortFast Edge BPDU Filtering, page 26-17
• About UplinkFast, page 26-19
• Enabling UplinkFast, page 26-20
• About BackboneFast, page 26-21
• Enabling BackboneFast, page 26-23
Note For complete syntax and usage information for the switch commands used in this chapter, see the
Cisco IOS Command Reference Guides for the Catalyst 4500 Series Switch.
If a command is not in the Cisco Catalyst 4500 Series Switch Command Reference , you can locate it in
the Cisco IOS Master Command List, All Releases.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E