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Document Title: Catalyst 4500 Series Switch Cisco IOS Software Configuration Guide

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iii

Software Configuration Guide—Release 12.2(20)EW

78-16453-01 A1

C O N T E N T S

Preface xxi

Audience xxi

Organization xxi

Related Documentation xxiii

Conventions xxiv

Commands in Task Tables xxv

Obtaining Documentation xxv

Cisco.com xxv

Ordering Documentation xxv

Documentation Feedback xxvi

Obtaining Technical Assistance xxvi

Cisco Technical Support Website xxvi

Submitting a Service Request xxvi

Definitions of Service Request Severity xxvii

Obtaining Additional Publications and Information xxvii

CHAPTER  1 Product Overview 1-1

Layer 2 Software Features 1-1 802.1Q and Layer 2 Protocol Tunneling 1-2

Storm Control 1-2

CDP 1-2

DHCP Snooping 1-2

EtherChannel Bundles 1-3

IP Source Guard 1-3

Jumbo Frames 1-3

Layer 2 Traceroute 1-3

MST 1-4

PVRST+ 1-4

Spanning Tree Protocol 1-4

UDLD 1-5

Unidirectional Ethernet 1-5

VLANs 1-5

Layer 3 Software Features 1-6

CEF 1-6

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Contents

iv

Software Configuration Guide—Release 12.2(20)EW

78-16453-01 A1

HSRP 1-6

IP Routing Protocols 1-6

Multicast Services 1-8

Network Security with ACLs 1-9

Policy-Based Routing 1-9

Unidirectional Link Routing 1-9

VRF-lite 1-10

QoS Features 1-10

Management and Security Features 1-10

Configuring Embedded CiscoView Support 1-12

Understanding Embedded CiscoView 1-13

Installing and Configuring Embedded CiscoView 1-13

Displaying Embedded CiscoView Information 1-15

CHAPTER  2 Command-Line Interfaces 2-1

Accessing the Switch CLI 2-1

Accessing the CLI Using the EIA/TIA-232 Console Interface 2-1

Accessing the CLI Through Telnet 2-2

Performing Command-Line Processing 2-3

Performing History Substitution 2-3

Understanding Cisco IOS Command Modes 2-4

Getting a List of Commands and Syntax 2-5

ROMMOM Command-Line Interface 2-6

CHAPTER  3 Configuring the Switch fo