Guest

Cisco Catalyst 4000 Series Switches

Using the Compact Flash on the Catalyst 4000 Family Supervisor Engine III

  • Viewing Options

  • PDF (271.9 KB)
  • Feedback

Table Of Contents

Using the Compact Flash on the Catalyst 4000 Family Supervisor Engine III

Contents

Overview

Safety Overview

Safety Guidelines

Electrical Equipment Guidelines

Preventing Electrostatic Discharge

Hardware and Software Requirements

Required Tools and Parts

Compatibility Requirements

Boot Environment Variables

Sample Upgrade Process

Installing a Compact Flash Storage Device

Working with a Compact Flash Storage Device

Software Command Overview

Using Software Commands

Using the show Command

Using the pwd Command

Using the dir Command

Using the format Command

Using the copy Command

Using the delete Command

Using the squeeze command

Enabling Booting from a Compact Flash Storage Device

Related Documentation

Obtaining Documentation

World Wide Web

Documentation CD-ROM

Ordering Documentation

Documentation Feedback

Obtaining Technical Assistance

Cisco.com

Technical Assistance Center

Cisco TAC Web Site

Cisco TAC Escalation Center


Using the Compact Flash on the Catalyst 4000 Family Supervisor Engine III


Product Numbers: MEM-C4K-FLD64M=, MEM-C4K-FLD128M=

This document contains installation and configuration information for the Catalyst 4000 family Supervisor Engine III compact Flash storage device.

Contents

This configuration note includes the following sections:

Overview

Safety Overview

Hardware and Software Requirements

Required Tools and Parts

Compatibility Requirements

Boot Environment Variables

Installing a Compact Flash Storage Device

Working with a Compact Flash Storage Device

Related Documentation

Obtaining Documentation

Obtaining Technical Assistance

Overview

This configuration note is a standalone publication that provides instructions for installing, removing, and using the Catalyst 4000 family Supervisor Engine III compact Flash storage device.

The compact Flash storage device provides increased storage—64 or 128 MB—for storage of system configuration files, Cisco IOS software images, and other types of system-related files. Table 1 provides memory information for the compact Flash storage device.

Table 1 Compact Flash Memory Options 

Memory Size
Product Number

64 MB

MEM-C4K-FLD64M

128 MB

MEM-C4K-FLD128M


Safety Overview

Throughout this publication, safety warnings appear in procedures that, if performed incorrectly, may harm you. A warning symbol precedes each warning statement.


Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. To see translations of the warnings that appear in this publication, refer to the Regulatory Compliance and Safety Information document that accompanied this device.

Warning Waarschuwing Dit waarschuwingssymbool betekent gevaar. U verkeert in een situatie die lichamelijk letsel kan veroorzaken. Voordat u aan enige apparatuur gaat werken, dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico's en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen. Voor vertalingen van de waarschuwingen die in deze publicatie verschijnen, kunt u het document Regulatory Compliance and Safety Information (Informatie over naleving van veiligheids- en andere voorschriften) raadplegen dat bij dit toestel is ingesloten.

Warning Varoitus Tämä varoitusmerkki merkitsee vaaraa. Olet tilanteessa, joka voi johtaa ruumiinvammaan. Ennen kuin työskentelet minkään laitteiston parissa, ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista. Tässä julkaisussa esiintyvien varoitusten käännökset löydät laitteen mukana olevasta Regulatory Compliance and Safety Information -kirjasesta (määräysten noudattaminen ja tietoa turvallisuudesta).

Warning Attention Ce symbole d'avertissement indique un danger. Vous vous trouvez dans une situation pouvant causer des blessures ou des dommages corporels. Avant de travailler sur un équipement, soyez conscient des dangers posés par les circuits électriques et familiarisez-vous avec les procédures couramment utilisées pour éviter les accidents. Pour prendre connaissance des traductions d'avertissements figurant dans cette publication, consultez le document Regulatory Compliance and Safety Information (Conformité aux règlements et consignes de sécurité) qui accompagne cet appareil.

Warning Warnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, die zu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit an irgendeinem Gerät beginnen, seien Sie sich der mit elektrischen Stromkreisen verbundenen Gefahren und der Standardpraktiken zur Vermeidung von Unfällen bewußt. Übersetzungen der in dieser Veröffentlichung enthaltenen Warnhinweise finden Sie im Dokument Regulatory Compliance and Safety Information (Informationen zu behördlichen Vorschriften und Sicherheit), das zusammen mit diesem Gerät geliefert wurde.

Warning Avvertenza Questo simbolo di avvertenza indica un pericolo. La situazione potrebbe causare infortuni alle persone. Prima di lavorare su qualsiasi apparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici ed essere al corrente delle pratiche standard per la prevenzione di incidenti. La traduzione delle avvertenze riportate in questa pubblicazione si trova nel documento Regulatory Compliance and Safety Information (Conformità alle norme e informazioni sulla sicurezza) che accompagna questo dispositivo.

Warning Advarsel Dette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føre til personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på de faremomentene som elektriske kretser innebærer, samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker. Hvis du vil se oversettelser av deadvarslene som finnes i denne publikasjonen, kan du se i dokumentet Regulatory Compliance and Safety Information (Overholdelse av forskrifter og sikkerhetsinformasjon) som ble levert med denne enheten.

Warning Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos físicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. Para ver as traduções dos avisos que constam desta publicação, consulte o documento Regulatory Compliance and Safety Information (Informação de Segurança e Disposições Reguladoras) que acompanha este dispositivo.

Warning ¡Advertencia! Este símbolo de aviso significa peligro. Existe riesgo para su integridad física. Antes de manipular cualquier equipo, considerar los riesgos que entraña la corriente eléctrica y familiarizarse con los procedimientos estándar de prevención de accidentes. Para ver una traducción de las advertencias que aparecen en esta publicación, consultar el documento titulado Regulatory Compliance and Safety Information (Información sobre seguridad y conformidad con las disposiciones reglamentarias) que se acompaña con este dispositivo.

Warning Varning! Denna varningssymbol signalerar fara. Du befinner dig i en situation som kan leda till personskada. Innan du utför arbete på någon utrustning måste du varamedveten om farorna med elkretsar och känna till vanligt förfarande för att förebygga skador. Se förklaringar av de varningar som förkommer i denna publikation i dokumentet Regulatory Compliance and Safety Information (Efterrättelse av föreskrifter och säkerhetsinformation), vilket medföljer denna anordning.

Warning Only trained and qualified personnel should be allowed to install or replace this equipment.

Safety Guidelines

Following are safety guidelines that you should follow when working with any equipment that connects to electrical power or which might be prone to electrostatic discharge (ESD) damage.

Electrical Equipment Guidelines

Follow these basic guidelines when working with any electrical equipment:

Before beginning any procedures requiring access to the chassis interior, locate the emergency power-off switch for the room in which you are working.

Disconnect all power and external cables before moving a chassis.

Do not work alone when potentially hazardous conditions exist.

Never assume that power has been disconnected from a circuit; always check.

Do not perform any action that creates a potential hazard or makes the equipment unsafe.

Carefully examine your work area for possible hazards such as damp floors, ungrounded power extension cables, and missing safety grounds.

Preventing Electrostatic Discharge

ESD damage, which can occur when electronic cards or components are improperly handled, can cause complete or intermittent failures.

Use the following guidelines to prevent ESD damage:

Always wear an ESD wrist or ankle strap and ensure that it makes good skin contact; connect the equipment end of the strap to an unfinished chassis surface.

Avoid contact between the printed circuit boards and clothing. The wrist strap only protects components from ESD voltages on the body; ESD voltages on clothing can still cause damage.


Warning For safety, periodically check the resistance value of the antistatic strap. The measurement should be between 1 and 10 megaohms (Mohms).

Hardware and Software Requirements

The compact Flash storage device provides file storage for the Catalyst 4000 family Supervisor Engine III running Cisco IOS Release 12.1(8a) EW or later.

Required Tools and Parts

You need some or all of the following tools and parts to install a compact Flash storage device:

MEM-C4K-FLD64M or MEM-C4K-FLD128M compact Flash storage device kit

Antistatic wrist strap

Access to a Trivial File Transfer Protocol (TFTP) server

Compatibility Requirements

You must format the compact Flash storage device before using it in the Catalyst 4000 Family Supervisor Engine III.

Boot Environment Variables

The contents of the boot environment variables, which are stored in the configuration file in NVRAM, determine the actions your system takes on bootup. To see the current settings of these variables, use the show bootvar command, as follows:

Switch> show bootvar
BOOT variable = 
CONFIG_FILE variable = 
Current CONFIG_FILE variable = 
BOOTLDR variable does not exist
Configuration register is 0x100
 
 

Following are explanations for each of these boot environment variables and instructions for changing them:

BOOT variable—Points to the Cisco IOS software image that you want to boot; you set the variable in configuration mode.

Using the configure terminal and boot system commands, enter configuration mode and specify a filename to boot from. Here is an example:

Switch# configure terminal
Enter configuration commands, one per line. End with CTRL-Z.
System(config)# boot system flash slot0:<image>
 
 

The result of this configuration file entry is that the BOOT variable is slot0:<image>

CONFIG_FILE (configuration file) variable—Determines where the configuration is read from on bootup; you set it in configuration mode, as follows:

Switch# configure terminal
Enter configuration commands, one per line. End with CTRL-Z.
System(config)# boot config slot0:filename
 
 

The result of this configuration file entry is that the CONFIG_FILE variable is slot0:filename.

Sample Upgrade Process

This section applies to users who want to use the compact Flash storage device for simple file storage. Use the following procedure to upgrade your compact Flash storage device:

Format your compact Flash storage device for IOS mode. See "Using the format Command" section for more information.

Copy an image to slot0 from bootflash or the network:

switch# copy bootflash:imagename slot0:imagename
 
 

or

switch# copy tftp://<image path>/imagename slot0:imagename
 
 

After you finish these tasks, you should be able to store configuration files and Cisco IOS software images on your Flash Disk.

Installing a Compact Flash Storage Device


Warning Before you install, operate, or service the system, read the Site Preparation and Safety Guide. This guide contains important safety information you should know before working with the system.

This section provides the compact Flash storage device installation procedures.

Use the show version command to verify that a compact Flash-compatible version of Cisco IOS software is running on your system:

Switch>show ver
Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M), Experimental
Version 12.1(20011221:004927) [cisco 130]
Copyright (c) 1986-2002 by cisco Systems, Inc.
Compiled Wed 02-Jan-02 11:21 by
Image text-base:0x00000000, data-base:0x00BBF110
 
 
ROM:12.1(10r)EW
Switch uptime is 5 hours, 25 minutes
System returned to ROM by reload
System image file is
"tftp://171.69.1.129/tftpboot/cisco/cat4000-is-mz"
 
 
cisco WS-C4006 (MPC8245) processor (revision 6) with 262144K bytes of
memory.
Processor board ID FOX0519S2RR
Last reset from Reload
Bridging software.
97 FastEthernet/IEEE 802.3 interface(s)
2 Gigabit Ethernet/IEEE 802.3 interface(s)
479K bytes of non-volatile configuration memory.
 
 
Configuration register is 0x920

If Cisco IOS software version12.1(8a)EW or later is running on your system, proceed with the installation procedure. If Cisco IOS software version12.1(8a)EW or later is not running on your system, install an appropriate software image before proceeding with the installation procedure.

See Figure 1 and perform the following steps to install and eject a compact Flash storage device:


Step 1 Face the front panel of your supervisor engine.

Step 2 Hold the compact Flash storage device with its connector end toward the compact Flash storage device slot and its label facing up.

The compact Flash storage device is keyed and cannot be seated the wrong way.

Step 3 Insert the compact Flash storage device into the PC Card slot until the compact Flash storage device completely seats in the connector at the rear of the slot, and the ejector button pops out toward you (see a and b on Figure 1).

The ejector button does not pop out if the Flash Disk is not completely inserted.

Figure 1 Installing and Removing the Compact Flash Storage Device

Step 4 To eject a compact Flash storage device, press the ejector button—located to the left of the slot, as shown in Figure 1c— until the Flash Disk is free of the connector at the rear of the PC Card slot.

Step 5 Remove the compact Flash storage device from the slot and place it in an antistatic bag.


This completes the procedure for installing and removing a compact Flash storage device. Proceed to the "Working with a Compact Flash Storage Device" section.

Working with a Compact Flash Storage Device

This section provides basic instructions for working with a compact Flash storage device in your system. Refer to the Catalyst 4000 Family Supervisor Engine III Installation and Configuration Note for more information.


Note These and all publications are available on the Documentation CD-ROM and Cisco.com.


This section includes the following subsections:

Software Command Overview

Using Software Commands

Software Command Overview

This section lists some of the basic software commands you can use with the compact Flash storage device. Examples of these commands are included in the sections that follow.

The compact Flash storage device and other memory devices and locations in your system are defined as file systems, which are locations where you can store, use, or retrieve files and software images.

You can use the compact Flash storage device in the compact Flash slot on your Supervisor Engine III. The compact Flash slot is called slot0: and internal Flash is called bootflash:.

Switch#show file system
File Systems:
 
 
     Size(b)     Free(b)      Type  Flags  Prefixes
*   61341696    42939612     flash     rw   bootflash:
    63897600    63897600     flash     rw   slot0:
      524260      523584     flash     rw   cat4000_flash:
      491500      489411     nvram     rw   nvram:
 
 

Table 2 lists the software commands for slot0.


Note You can use other arguments with some of the commands listed in Table 2; however, in Table 2 and throughout this document, command arguments are limited to those that apply to the compact Flash storage device and related file systems.

For a discussion of additional command arguments, refer to the Configuration Fundamentals Command Reference document, in the chapter "File Management Commands."


Table 2 Compact Flash-Related Software Commands 

Command and Arguments
Description
cd (slot0: | bootflash:)

Allows changing default filesystem to slot0: or bootflash:.

copy (bootflash: | slot0:source-filename  
(bootflash: | slot0:)destination-filename

Copies from one file to another.
Allows you to make a copy of a file (source-filename) located on a source file system (slot0:, bootflash) and place it with either the same filename or a different filename (destination-filename) on a destination file system. Along with slot0: and bootflash:, the source and destination file system arguments include, but are not limited to:

nvram: (onboard nonvolatile random-access memory)

running-config (the running system configuration file)

startup-config (the startup system configuration file)

tftp: (a TFTP server to which you have access)

delete (slot0: | bootflash:)filename

Deletes a file.
Allows you to delete any file you specify, where filename is the name of the file.

squeeze (slot0: | bootflash:)

Reclaims space from compact Flash storage device or internal flash after files have been deleted using delete command.

dir (/all | slot0: | bootflash:)

Lists files on a file system.
Allows you to list the contents of the compact Flash storage device or internal Flash. The /all argument lists all files on all file systems in your system.

format (bootflash: | slot0:)

Formats a file system.
Allows you to format a linear Flash memory card (flash:), onboard Flash memory (bootflash:), or a new compact Flash storage device (slot0: or disk1:). This command also allows you to reformat a linear Flash memory card or compact Flash storage device that was formatted on another type of system.

Note This command destroys all data currently in Flash memory; therefore, we strongly recommend that you use the format command with caution to prevent irretrievable loss of data.

pwd

Displays current working directory.
Allows you to display the name of the directory in which you are currently working.

rename (bootflash: | slot0:)filename  
(bootflash: | slot0:)filename

Renames a file.
Allows you to rename a file that is located on one compact Flash storage device and assign to that file another (or the same) file system path and filename. The first group of arguments defines the source (current) file system path and filename, and the second set of arguments defines the destination file system path and filename.

show (slot0: | bootflash:)

Lists information about compact Flash format and geometry.


Using Software Commands

The following sections provide examples of some of the basic software commands you can use with the Flash Disk. See Table 2, above, for optional arguments you can use with some of the following commands.

Using the show Command

To display information about compact Flash format, use the show [slot0: | bootflash:] command:

System# show slot0:

Using the pwd Command

To determine which directory you are in, use the pwd command:

System# pwd
bootflash:/
System#
 
 

The preceding example indicates that you are currently in the working directory called bootflash:, which is the internal Flash on the Supervisor Engine III.

Using the dir Command

To list the directory structure and contents of the memory card from which you are currently working, use the dir command with no arguments:

Switch#dir
Directory of bootflash:/
 
 
    1  -rw-     5789296   --- -- ---- --:--:-- cat4000-is-mz.121_75_EK2_082
    2  -rw-        6051   Jan 09 2000 17:17:01 jsmith1
    3  -rw-     6331880   --- -- ---- --:--:--  ddimage
    4  -rw-     6274200   --- -- ---- --:--:--  cat4000-is-mz.save
    5  -rw-          15   Feb 10 2000 21:09:59  ken.txt
 
 
61341696 bytes total (42939612 bytes free)
 
 

Note that the size of the memory card is shown in the output of the dir command. You can also view the contents of other directories and file systems using specific optional arguments with the dir command. (See Table 2.)

Using the format Command

To format a new compact Flash storage device, use the format [slot0:] command.

You must format a new compact Flash storage device before you can use it. If you plan to use a compact Flash storage device that was formatted and used on another type of system, you must first reformat the compact Flash storage device for your current system.


Caution The formatting procedure erases all information on the compact Flash storage device. To prevent the loss of important data that might be stored on a compact Flash storage device, proceed carefully. If you want to save data that is currently on your compact Flash storage device, copy the data to a TFTP server or to another device before you format the new compact Flash storage device.

A compact Flash storage device is shipped blank; therefore, you must format it before you can use it.

Use the following procedure to format a new compact Flash storage device using the format command. (The procedure assumes you have already booted your system.)


Step 1 Insert the compact Flash storage device into the compact Flash slot on your Supervisor Engine III.

Step 2 Use the format slot0: command to format the compact Flash storage device in PC Card slot 0, as follows:

Switch#format slot0:
Format operation may take a while. Continue? [confirm]
Format operation will destroy all data in "slot0:".  Continue? [confirm]
 
 
Enter volume ID (up to 64 chars)[default slot0]:
Formatting sector 950
Format of slot0 complete
 
 

The new compact Flash storage device is now formatted and ready to use in the system on which you formatted it.

Using the copy Command

To copy an image from a compact Flash storage device to another file system or from another file system to the Flash Disk, use the copy command:

copy [tftp: | bootflash: | slot0:]source-filename [tftp: | bootflash: | slot0:]destination-filename

In this example:

The file you want to copy is located in a file system (tftp:, bootflash:, and so forth).

The variable source-filename is the name of the file you want to copy to another file system (tftp:, bootflash:, and so forth).

The variable destination-filename is the name you want to apply to this file after it is copied.

You do not need to change the filename; doing so is optional.

Using the delete Command

To delete a file from a compact Flash storage device, use the delete command. Use the dir command to find the file you want to delete, and then use the delete command to delete it.

The following procedure shows how to find a file (called fun1) on the compact Flash storage device in PC Card slot 0, delete the file, and then verify that it is deleted:


Step 1 Find the file you want to delete:

Switch# dir
Directory of slot0:/
 
 
    1  -rw-        6051   Feb 22 2000 22:31:18  fun1
 
 
63897600 bytes total (63891420 bytes free)
 
 

Step 2 Delete the file fun1:

Switch#del slot0:fun1
Delete filename [fun1]?
Delete slot0:fun1? [confirm]
 
 

Step 3 Verify that the file fun1 is deleted:

Switch# dir
Directory of slot0:/
 
 
No files in directory
 
 
63897600 bytes total (63891420 bytes free)
Switch#

Using the squeeze command

Use the squeeze command to reclaim space on bootflash:or slot0:devices after files have been deleted using the delete command. The squeeze command does not have to be used after every deletion, only when you start running out of space on bootflash:or slot0:.

Enabling Booting from a Compact Flash Storage Device

This section explains how to enable booting from a compact Flash storage device.

To enable booting from a compact Flash storage device, set the configuration register option to boot from the BOOT environment variable in conjunction with the boot system [slot0:]filename configuration command. Refer to the Catalyst 4000 Family Supervisor Engine III Installation and Configuration Note for more information. This section includes only descriptions of boot commands specific to the compact Flash storage device. (You can use either the bootflash: argument or the tftp argument for boot commands.)

Following is the definition of the compact Flash boot command:

boot system flash slot0:filename:Makes slot0:filename part of the BOOT environment variable. During boot up time, this command will cause the ROM monitor to boot from files specified in BOOT.

For more information about BOOT and boot procedures, refer to the Catalyst 4000 Family Supervisor Engine III Installation and Configuration Note.

Related Documentation

For more detailed installation and configuration information, refer to these publications:

Regulatory Compliance and Safety Information

Site Preparation and Safety Guide

Catalyst 4000 Family Supervisor Engine III Installation and Configuration Note

Software Configuration Guide—Release 12.1(8a)EW

Command Reference—Release 12.1(8a)EW

System Message Guide—Release 12.1(8a)EW

Catalyst 4000 Family IOS Software Documentation Map

Obtaining Documentation

The following sections explain how to obtain documentation from Cisco Systems.

World Wide Web

You can access the most current Cisco documentation on the World Wide Web at the following URL:

http://www.cisco.com

Translated documentation is available at the following URL:

http://www.cisco.com/public/countries_languages.shtml

Documentation CD-ROM

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

Ordering Documentation

Cisco documentation is available in the following ways:

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

http://www.cisco.com/cgi-bin/order/order_root.pl

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, elsewhere in North America, by calling 800 553-NETS (6387).

Documentation Feedback

If you are reading Cisco product documentation on Cisco.com, you can submit technical comments electronically. Click Leave Feedback at the bottom of the Cisco Documentation home page. After you complete the form, print it out and fax it to Cisco at 408 527-0730.

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

To submit your comments by mail, use the response card behind the front cover of your document, or write to the following address:

Cisco Systems
Attn: 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 by using the Cisco Technical Assistance Center (TAC) Web Site. Cisco.com registered users have complete access to the technical support resources on the Cisco TAC Web Site.

Cisco.com

Cisco.com is the foundation of a suite of interactive, networked services that provides immediate, open access to Cisco information, networking solutions, services, programs, and resources at any time, from anywhere in the world.

Cisco.com is a highly integrated Internet application and a powerful, easy-to-use tool that provides a broad range of features and services to help you to

Streamline business processes and improve productivity

Resolve technical issues with online support

Download and test software packages

Order Cisco learning materials and merchandise

Register for online skill assessment, training, and certification programs

You can self-register on Cisco.com to obtain customized information and service. To access Cisco.com, go to the following URL:

http://www.cisco.com

Technical Assistance Center

The Cisco TAC is available to all customers who need technical assistance with a Cisco product, technology, or solution. Two types of support are available through the Cisco TAC: the Cisco TAC Web Site and the Cisco TAC Escalation Center.

Inquiries to Cisco TAC are categorized according to the urgency of the issue:

Priority level 4 (P4)—You need information or assistance concerning Cisco product capabilities, product installation, or basic product configuration.

Priority level 3 (P3)—Your network performance is degraded. Network functionality is noticeably impaired, but most business operations continue.

Priority level 2 (P2)—Your production network is severely degraded, affecting significant aspects of business operations. No workaround is available.

Priority level 1 (P1)—Your production network is down, and a critical impact to business operations will occur if service is not restored quickly. No workaround is available.

Which Cisco TAC resource you choose is based on the priority of the problem and the conditions of service contracts, when applicable.

Cisco TAC Web Site

The Cisco TAC Web Site allows you to resolve P3 and P4 issues yourself, saving both cost and time. The site provides around-the-clock access to online tools, knowledge bases, and software. To access the Cisco TAC Web Site, go to the following URL:

http://www.cisco.com/tac

All customers, partners, and resellers who have a valid Cisco services contract have complete access to the technical support resources on the Cisco TAC Web Site. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password, go to the following URL to register:

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

If you cannot resolve your technical issues by using the Cisco TAC Web Site, and you are a Cisco.com registered user, you can open a case online by using the TAC Case Open tool at the following URL:

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

If you have Internet access, it is recommended that you open P3 and P4 cases through the Cisco TAC Web Site.

Cisco TAC Escalation Center

The Cisco TAC Escalation Center addresses issues that are classified as priority level 1 or priority level 2; these classifications are assigned when severe network degradation significantly impacts business operations. When you contact the TAC Escalation Center with a P1 or P2 problem, a Cisco TAC engineer will automatically open a case.

To obtain a directory of toll-free Cisco TAC telephone numbers for your country, go to the following URL:

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

Before calling, please check with your network operations center to determine the level of Cisco support services to which your company is entitled; for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). In addition, please have available your service agreement number and your product serial number.