Catalyst 3550 Multilayer Switch Command Reference, 12.1(4)EA1 - Preface [Cisco Catalyst 3550 Series Switches]

Table Of Contents

Preface

Audience

Purpose

Organization

Conventions

Related Publications

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Contacting TAC by Using the Cisco TAC Website

Contacting TAC by Telephone

Preface

Audience

This guide is for the networking professional managing the Catalyst 3550 switch, hereafter referred to as the switch or the multilayer switch (when it has the enhanced multilayer switch image installed), from the Cisco IOS command-line interface (CLI). Before using this guide, you should have experience working with the Cisco IOS and be familiar with the concepts and terminology of Ethernet and local area networking.

Purpose

This guide provides the information you need about the Layer 2 and Layer 3 commands that have been created or changed for use with the Catalyst 3550 family of switches. For information about the standard IOS Release 12.1 commands, refer to the IOS documentation set available from the CCO home page at Service and Support > Technical Documents > Documentation Home Page > Cisco IOS Software Configuration > Cisco IOS Release 12.1.

This guide does not provide procedures for configuring your switch. For detailed configuration procedures, refer to the Catalyst 3550 Multilayer Switch Software Configuration Guide for this release.

This guide does not describe system messages you might encounter. For more information, refer to the Catalyst 3550 Multilayer Switch System Message Guide for this release.

Organization

This guide is organized into these chapters:

"Using the Command-Line Interface," describes how to access the command modes and use the switch command-line interface (CLI) to configure software features.

"Cisco IOS Commands," describes in alphabetical order the IOS commands that you use to configure and monitor your switch.

"Boot Loader Commands," describes in alphabetical order the boot loader commands. The boot loader provides access to the Flash file system before the operating system is loaded and trap-door access into the system if the operating system has problems serious enough that prevent it from being used.

Conventions

This publication uses these conventions to convey instructions and information:

Command descriptions use these conventions:

•Commands and keywords are in boldface text.

•Arguments for which you supply values are in italic.

•Square brackets ([ ]) means optional elements.

•Braces ({ }) group required choices, and vertical bars ( | ) separate the alternative elements.

•Braces and vertical bars within square brackets ([{ | }]) mean a required choice within an optional element.

Interactive examples use these conventions:

•Terminal sessions and system displays are in screen font.

•Information you enter is in boldface screen font.

•Nonprinting characters, such as passwords or tabs, are in angle brackets (< >).

Notes, cautions, and warnings use these conventions and symbols:

Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual.

Caution Means reader be careful. In this situation, you might do something that could result equipment damage or loss of data.

Timesaver Means the following will help you solve a problem. The tips information might not be troubleshooting or even an action, but could be useful information.

Related Publications

You can order printed copies of documents with a DOC-xxxxxxx= number. For more information, see the "Ordering Documentation" section.

These publications provide more information about the switch:

•Catalyst 3550 Multilayer Switch Documentation CD

This CD is shipped with the switch and contains these documents:

–Catalyst 3550 Multilayer Switch Software Configuration Guide (order number DOC-7811194=)

–Catalyst 3550 Multilayer Switch Command Reference (DOC-7811195=)

–Catalyst 3550 Multilayer Switch System Message Guide (order number DOC-7811196=)

–Catalyst 3550 Multilayer Switch Hardware Installation Guide (order number DOC-7811358=)

•Release Notes for the Catalyst 3550 Multilayer Switch, Cisco IOS Release 12.1(4)EA1

Obtaining Documentation

The following sections provide sources for obtaining documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at these sites:

•http://www.cisco.com

•http://www-china.cisco.com

•http://www-europe.cisco.com

Documentation CD-ROM

Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and might be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription.

Ordering Documentation

Cisco documentation is available in these ways:

•Registered Cisco Direct Customers can order Cisco Product documentation from the Networking Products MarketPlace:

http://www.cisco.com/public/ordsum.html

•Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store:

http://www.cisco.com/go/subscription

•Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387).

Documentation Feedback

If you are reading Cisco product documentation on the World Wide Web, you can send us your comments by completing the online survey. When you display the document listing for this platform, click Give Us Your Feedback. If you are using the product-specific CD and you are connected to the Internet, click the pencil-and-paper icon in the toolbar to display the survey. After you display the survey, select the manual that you wish to comment on. Click Submit to send your comments to the Cisco documentation group.

You can e-mail your comments to bug-doc@cisco.com.

To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to this address:

Cisco Systems, Inc.
Document Resource Connection
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Obtaining Technical Assistance

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco.

Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available.

Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco.

To access Cisco.com, go to this website:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract.

Contacting TAC by Using the Cisco TAC Website

If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website:

http://www.cisco.com/tac

P3 and P4 level problems are defined as follows:

•P3—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

•P4—You need information or assistance on Cisco product capabilities, product installation, or basic product configuration.

In each of the above cases, use the Cisco TAC website to quickly find answers to your questions.

To register for Cisco.com, go to this website:

http://www.cisco.com/register/

If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at this website:

http://www.cisco.com/tac/caseopen

Contacting TAC by Telephone

If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to this website:

http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

P1 and P2 level problems are defined as follows:

•P1—Your production network is down, causing a critical impact to business operations if service is not restored quickly. No workaround is available.

•P2—Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available.

	Catalyst 3550 Multilayer Switch Command Reference, 12.1(4)EA1
	Preface
Catalyst 3550 Multilayer Switch Command Reference, 12.1(4)EA1 Index Preface Using the Command-Line Interface Cisco IOS Commands Commands - part 1 Commands - part 2 Commands - part 3 Boot Loader Commands	Download this chapter Preface Download the complete book Catalyst 3550 Multilayer Switch Command Reference (full book in PDF format) (PDF - 3 MB) Table Of Contents Preface Audience Purpose Organization Conventions Related Publications Obtaining Documentation World Wide Web Documentation CD-ROM Ordering Documentation Documentation Feedback Obtaining Technical Assistance Cisco.com Technical Assistance Center Contacting TAC by Using the Cisco TAC Website Contacting TAC by Telephone Preface Audience This guide is for the networking professional managing the Catalyst 3550 switch, hereafter referred to as the switch or the multilayer switch (when it has the enhanced multilayer switch image installed), from the Cisco IOS command-line interface (CLI). Before using this guide, you should have experience working with the Cisco IOS and be familiar with the concepts and terminology of Ethernet and local area networking. Purpose This guide provides the information you need about the Layer 2 and Layer 3 commands that have been created or changed for use with the Catalyst 3550 family of switches. For information about the standard IOS Release 12.1 commands, refer to the IOS documentation set available from the CCO home page at Service and Support > Technical Documents > Documentation Home Page > Cisco IOS Software Configuration > Cisco IOS Release 12.1. This guide does not provide procedures for configuring your switch. For detailed configuration procedures, refer to the Catalyst 3550 Multilayer Switch Software Configuration Guide for this release. This guide does not describe system messages you might encounter. For more information, refer to the Catalyst 3550 Multilayer Switch System Message Guide for this release. Organization This guide is organized into these chapters: "Using the Command-Line Interface," describes how to access the command modes and use the switch command-line interface (CLI) to configure software features. "Cisco IOS Commands," describes in alphabetical order the IOS commands that you use to configure and monitor your switch. "Boot Loader Commands," describes in alphabetical order the boot loader commands. The boot loader provides access to the Flash file system before the operating system is loaded and trap-door access into the system if the operating system has problems serious enough that prevent it from being used. Conventions This publication uses these conventions to convey instructions and information: Command descriptions use these conventions: •Commands and keywords are in boldface text. •Arguments for which you supply values are in italic. •Square brackets ([ ]) means optional elements. •Braces ({ }) group required choices, and vertical bars ( \| ) separate the alternative elements. •Braces and vertical bars within square brackets ([{ \| }]) mean a required choice within an optional element. Interactive examples use these conventions: •Terminal sessions and system displays are in `screen` font. •Information you enter is in boldface screen font. •Nonprinting characters, such as passwords or tabs, are in angle brackets (< >). Notes, cautions, and warnings use these conventions and symbols: Note Means reader take note. Notes contain helpful suggestions or references to materials not contained in this manual. Caution Means reader be careful. In this situation, you might do something that could result equipment damage or loss of data. Timesaver Means the following will help you solve a problem. The tips information might not be troubleshooting or even an action, but could be useful information. Related Publications You can order printed copies of documents with a DOC-xxxxxxx= number. For more information, see the "Ordering Documentation" section. These publications provide more information about the switch: •Catalyst 3550 Multilayer Switch Documentation CD This CD is shipped with the switch and contains these documents: –Catalyst 3550 Multilayer Switch Software Configuration Guide (order number DOC-7811194=) –Catalyst 3550 Multilayer Switch Command Reference (DOC-7811195=) –Catalyst 3550 Multilayer Switch System Message Guide (order number DOC-7811196=) –Catalyst 3550 Multilayer Switch Hardware Installation Guide (order number DOC-7811358=) •Release Notes for the Catalyst 3550 Multilayer Switch, Cisco IOS Release 12.1(4)EA1 Obtaining Documentation The following sections provide sources for obtaining documentation from Cisco Systems. World Wide Web You can access the most current Cisco documentation on the World Wide Web at these sites: •http://www.cisco.com •http://www-china.cisco.com •http://www-europe.cisco.com Documentation CD-ROM Cisco documentation and additional literature are available in a CD-ROM package, which ships with your product. The Documentation CD-ROM is updated monthly and might be more current than printed documentation. The CD-ROM package is available as a single unit or as an annual subscription. Ordering Documentation Cisco documentation is available in these ways: •Registered Cisco Direct Customers can order Cisco Product documentation from the Networking Products MarketPlace: http://www.cisco.com/public/ordsum.html •Registered Cisco.com users can order the Documentation CD-ROM through the online Subscription Store: http://www.cisco.com/go/subscription •Nonregistered Cisco.com users can order documentation through a local account representative by calling Cisco corporate headquarters (California, USA) at 408 526-7208 or, in North America, by calling 800 553-NETS(6387). Documentation Feedback If you are reading Cisco product documentation on the World Wide Web, you can send us your comments by completing the online survey. When you display the document listing for this platform, click Give Us Your Feedback. If you are using the product-specific CD and you are connected to the Internet, click the pencil-and-paper icon in the toolbar to display the survey. After you display the survey, select the manual that you wish to comment on. Click Submit to send your comments to the Cisco documentation group. You can e-mail your comments to bug-doc@cisco.com. To submit your comments by mail, for your convenience many documents contain a response card behind the front cover. Otherwise, you can mail your comments to this address: Cisco Systems, Inc. Document Resource Connection 170 West Tasman Drive San Jose, CA 95134-9883 We appreciate your comments. Obtaining Technical Assistance Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can obtain documentation, troubleshooting tips, and sample configurations from online tools. For Cisco.com registered users, additional troubleshooting tools are available from the TAC website. Cisco.com Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information and resources at anytime, from anywhere in the world. This highly integrated Internet application is a powerful, easy-to-use tool for doing business with Cisco. Cisco.com provides a broad range of features and services to help customers and partners streamline business processes and improve productivity. Through Cisco.com, you can find information about Cisco and our networking solutions, services, and programs. In addition, you can resolve technical issues with online technical support, download and test software packages, and order Cisco learning materials and merchandise. Valuable online skill assessment, training, and certification programs are also available. Customers and partners can self-register on Cisco.com to obtain additional personalized information and services. Registered users can order products, check on the status of an order, access technical support, and view benefits specific to their relationships with Cisco. To access Cisco.com, go to this website: http://www.cisco.com Technical Assistance Center The Cisco TAC website is available to all customers who need technical assistance with a Cisco product or technology that is under warranty or covered by a maintenance contract. Contacting TAC by Using the Cisco TAC Website If you have a priority level 3 (P3) or priority level 4 (P4) problem, contact TAC by going to the TAC website: http://www.cisco.com/tac P3 and P4 level problems are defined as follows: •P3—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue. •P4—You need information or assistance on Cisco product capabilities, product installation, or basic product configuration. In each of the above cases, use the Cisco TAC website to quickly find answers to your questions. To register for Cisco.com, go to this website: http://www.cisco.com/register/ If you cannot resolve your technical issue by using the TAC online resources, Cisco.com registered users can open a case online by using the TAC Case Open tool at this website: http://www.cisco.com/tac/caseopen Contacting TAC by Telephone If you have a priority level 1(P1) or priority level 2 (P2) problem, contact TAC by telephone and immediately open a case. To obtain a directory of toll-free numbers for your country, go to this website: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml P1 and P2 level problems are defined as follows: •P1—Your production network is down, causing a critical impact to business operations if service is not restored quickly. No workaround is available. •P2—Your production network is severely degraded, affecting significant aspects of your business operations. No workaround is available.
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