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Cisco Packet Data Serving Node Service Manager

Release Notes for Packet Data Serving Node Service Manager 4.0

Table Of Contents

Release Notes for Cisco PDSN Service Manager, Release 4.0

Contents

Introduction

Supported Devices

Prerequisites

PDSN Configurations For Service Activation

Sun Server Requirements

Client Requirements

Supported Browsers

Sun Patches and Packages Requirements

Determining the Software Version

Installing the PDSN Service Manager

Installation Order

Installing Procedure

Backup and Restore

Uninstalling PDSN SM

Limitations and Restrictions

Known Problems

Product Documentation

Related Documentation

Obtaining Documentation

Cisco.com

Product Documentation DVD

Ordering Documentation

Documentation Feedback

Cisco Product Security Overview

Reporting Security Problems in Cisco Products

Obtaining Technical Assistance

Cisco Technical Support & Documentation Website

Submitting a Service Request

Definitions of Service Request Severity

Obtaining Additional Publications and Information


Release Notes for Cisco PDSN Service Manager, Release 4.0


78-17095-01

November, 2005

These release notes contain important information about the PDSN Service Manager, Release 4.0. The PDSN SM facilitates service-activation or deactivation in Cisco PDSN devices in Cisco Mobile Exchange networks.

Contents

This document covers the following topics:

Introduction

Supported Devices

Prerequisites

PDSN Configurations For Service Activation

Installing the PDSN Service Manager

Uninstalling PDSN SM

Limitations and Restrictions

Known Problems

Product Documentation

Related Documentation

Obtaining Documentation

Documentation Feedback

Documentation Feedback

Obtaining Additional Publications and Information

Introduction

A Cisco Packet Data Serving Node (PDSN) provides access to the Internet, intranets, and Wireless Application Protocol (WAP) servers for mobile stations that use a CDMA2000 radio access network (RAN).

The PDSN SM is an application that provides an easy and intuitive way to provision service-activation or deactivation in Cisco PDSN devices in Cisco Mobile Exchange networks. You can also use the PDSN SM to troubleshoot and debug by using show and debug commands.

The main components of the PDSN Service Manager are:

Inventory—Use this feature to manage and display PDSN device group information. It interfaces with the Common Services Device Credentials Repository (DCR) to obtain information about PDSN devices in the network.

Service Manager—Use this feature to activate and manage the various services in an PDSN device group.

Tools—Use this feature to troubleshoot and debug by using show and debug commands. You can proactively assess the status of the PDSN devices and, hence, improve network serviceability.

The User Guide for Cisco Packet Data Serving Node Service Manager provides complete information on the PDSN SM. See Product Documentation, for information on accessing the electronic version of this document on the Cisco website.

The PDSN SM is part of the Mobile Wireless Center (MWC) for Cisco Mobile Exchange, a suite of element-management applications that provide configuration and fault-monitoring capabilities to mobile wireless operators. The MWC for Cisco Mobile Exchange applications complement the CiscoWorks LAN Management Solution (LMS) to manage the Cisco Mobile Exchange. The LMS is prerequisite to MWC for Cisco Mobile Exchange.

The LMS includes:

Common Services 3.0 with Service Pack 2 (CS 3.0 SP2) and CiscoView 6.1

Resource Manager Essentials (RME) 4.0 with RME 4.0.2 update (RME 4.0.2)

Campus Manager 4.0

Internet Performance Monitor (IPM) 2.6 (optional)

Please refer to the Release Notes for Mobile Wireless Center for Cisco Mobile Exchange Release 4.0 for information on MWC for Cisco Mobile Exchange and the LMS requirement.

Supported Devices

Table 1 displays the devices that PDSN SM supports:

Table 1 List of Supported Devices 

Device
IOS Version

PDSN 2.1

12.3(11)YF, 12.3(11)YF1, 12.3(11)YF2, 12.3(11)YF3

PDSN 3.0

12.3(14)YX


Prerequisites

Before you configure a PDSN by using the PDSN SM:

Ensure that the supported PDSN devices and their IOS versions are:

PDSN 2.0: 12.3(11)YF, 12.3(11)YF1, 12.3(11)YF2, 12.3(11)YF3

PDSN 3.0: 12.3(14)YX

Ensure that IOS version of the Catalyst switch and the PDSN version are the same.

PDSN Version
Supervisor Type
IOS Image

PDSN 2.1

Sup2

12.2(18)SXD3

PDSN 3.0

Sup2

12.2(18)SXD3 or later

PDSN 3.0

Sup720

12.2(18)SXD3 or later


Ensure that you configure the device as PDSN. Without this configuration, PDSN SM will fail to identify the device as a Cisco PDSN device.

Enable Mobile IP service in the device.

Enable SNMP so that the PDSN SM can check the version of the device.

Ensure that you configure all the PDSN devices with some prerequisite configurations to manage and configure service activation commands. For more information, see PDSN Configurations For Service Activation.

Install CiscoWorks LMS Bundle 2.5 (along with CS 3.0.2 and RME 4.0.2) from Cisco.com prior to installing the PDSN SM.

Add the PDSN to be configured to the Device Credentials Repository (DCR).

Each device that the PDSN SM references must be in the Resource Manager Essentials (RME) inventory, and the device should be in Normal state.

In the Normal device state, RME has successfully contacted the device or the device has contacted RME at least once (polling, successful job completion, Syslog receipt, and so on). This action indicates that this is a real device in the network (at one point in time).

For more information on the RME inventory, see the RME documentation at:
http://cisco.com/en/US/products/sw/cscowork/ps2073/products_user_guide_list.html

The following are the prerequisites that you need to install PDSN SM:

Sun Server Requirements

Client Requirements

Supported Browsers

Sun Patches and Packages Requirements

PDSN Configurations For Service Activation

You must configure the PDSN devices with the following configurations as a prerequisite to manage and configure some service-activation commands by using PDSN SM:

Enable PDSN service on the device:

service cdma pdsn

Enable FA and Mobile IP service:

router mobile

ip mobile foreign-agent care-of <Interface Name>

ip mobile router

Enable the AAA access control model for Packet of Disconnect (POD) or RADIUS Disconnect configuration.

aaa new-model

Enable local user access (via Telnet) when AAA is configured:

If you do not require user login:

aaa authentication login default enable

If you do not require username and password:

aaa authentication login default local

username <login name> privilege <user privelege level> password <user password>

Enable AAA authorization for MSID-based user authentication:

aaa authorization configuration default group radius

Configure SNMP community strings:

Configure Read-only (RO) community string

snmp-server community <read community> RO

Configure Read-write (RW) community string

snmp-server community <write community> RW

Configure service internal command in MWAM devices to monitor redundancy statistics.

Sun Server Requirements

Table 2 displays the minimum server requirements for PDSN SM.

Table 2 Sun Server Requirements 

Requirement Type
Minimum Requirements

System hardware

Dual Processor UltraSPARC III/IIIi or better.

UltraSPARC III Cu Processor

2@1.015 GHz

External Cache per processor

8 MB

Memory

4 GB (4@1GB DIMMS)

Disk drives

2@36 GB

Swap space

8 GB

Operating system

Solaris 9

CiscoWorks

LMS 2.5 along with:

Common Services 3.0 with Service Pack 2 (CS 3.0.2)

Resource Manager Essentials 4.0 Service Pack 2 (RME 4.0.2).


Client Requirements

Table 3 lists the minimum client requirements for PDSN SM.

Table 3 Client Requirements 

Requirement Type
Minimum Requirements

System hardware

IBM system with at least a 300 MHz Pentium processor.

Sun UltraSPARC IIIi, running Solaris 8 or 9.

Memory (RAM)

512 MB minimum. We recommend that you set virtual memory to twice the size of RAM.

Available disk drive space

One of the following:

For Solaris: 1 GB swap space

For Windows: 1 GB virtual memory

Operating Environment

For CiscoWorks LMS 2.5 with Common Services SP2:

Windows 2000 (Professional and Server) with SP 3 or SP4.

Windows XP (SP1 and SP2)

Windows Server 2003 (Standard and Enterprise Edition).

Solaris 8 and 9

We recommend that you install the Solaris Operating System in entire distribution mode.

Swap Space

We recommend that you set swap space to twice the size of RAM. For example, if your system has 8GB of RAM, you need 16 GB of swap space.


Supported Browsers

Table 4 displays the supported browsers.

Table 4 Supported Browsers 

Browser
Browser Version
Operating System

Internet Explorer

6.0.26

6.0.28

Any one of the following:

Windows 2000

Windows XP1

6.0 (6.0.3790.0)

Windows Server 2003

Netscape Navigator

7.1

Any one of the following:

Windows 2000

Windows XP

Netscape Navigator (Downloaded from Sun Microsystems site only)

7.0

Solaris 8 or 9

1 Windows XP professional is not packaged with JVM. JVM is installed after you install Windows XP.


Sun Patches and Packages Requirements

The "Prerequisites" section of the Installation and Setup Guide for CiscoWorks Common Services 3.0 on Solaris lists the required and recommended patches for Solaris 2.8 and 2.9. The required patches are mandatory for all Common Services features to function properly. The recommended patches are optional.

Determining the Software Version

To determine the version of the packages that are installed on your CiscoWorks server:


Step 1 On the CiscoWorks Homepage choose Common Services > Software Center > Software Update. The Software Updates page appears.

Step 2 The software version is listed in the Version field of the Products Installed table.


Installing the PDSN Service Manager

This section contains information on:

Installation Order

Installing Procedure

Backup and Restore

Installation Order

The PDSN SM 4.0 requires that the CiscoWorks Common Services application be bundled with the LAN Management Solution (LMS), Release 2.5. The LMS is prerequisite to MWC for Cisco Mobile Exchange.

For new installations, always install the CiscoWorks LMS bundle first.

The two installable units for the PDSN SM are:

CMX Core SM 4.0

CMX PDSN SM 4.0

Refer to the Release Notes for Mobile Wireless Center for Cisco Mobile Exchange Release 4.0 for information on installing the core. This section provides installation information on installing PDSN SM 4.0.

Installing Procedure

To install the PDSN SM:


Step 1 Install CMX Core SM 4.0. Refer to the Release Notes for Mobile Wireless Center for Cisco Mobile Exchange Release 4.0 for information on this procedure.

Step 2 Insert the PDSN SM 4.0 CD-ROM drive.

Step 3 Enter the following command:

cd /cdrom/cmx_pdsn_sm4_0_sol/CMX-PDSN-SM4.0

Step 4 Enter the following command to install PDSN SM:

./setup.sh

A confirmation message appears after a successful installation. If errors occur during installation, check the installation log file: /var/tmp/pdsninstall.log.


Backup and Restore

You can use PDSN SM to back up and restore:

Device groups that you create

Batch files that you create

Sync Report files

Backing Up Files

To create a backup of these types of files, enter the command:

/opt/CSCOpx/bin/perl /opt/CSCOpx/bin/backup.pl backup_directory

Restoring Files

To restore the backed-up files, enter the command:

/opt/CSCOpx/bin/perl /opt/CSCOpx/bin/restorebackup.pl -d backup_directory

Uninstalling PDSN SM

To uninstall PDSN SM:


Step 1 Enter the command:

cd /opt/CSCOpx/bin

Step 2 Enter the command to uninstall PDSN SM:

./uninstall.sh

The script prompts you with a list of software that is installed in the host machine.

Step 3 Choose PDSN SM 4.0 and confirm the choice.


Limitations and Restrictions

This section lists some limitations in PDSN SM:

Configuring default values of service-activation parameters

When you configure default values of service-activation parameters in the PDSN SM GUI, the corresponding command is generated and downloaded to the device; but, the values do not appear in the GUI.

The Job Details window reports the output of some commands as:

Failed, although they are configured on the devices.

Successful, although they are not configured on the devices.

CSCsc21866, and CSCsc28215 are examples of this behaviour. Verify the output of the configurations on the device.

ODAP client and server pools

PDSN 2.1 and PDSN 3.0 IOS allows you to configure ODAP server pools in ODAP clients and vice versa. See, CSCsc22619 for more information.
If such pools exist in a device, the Display Config window and the Sync Report Config Diff Viewer will list all the configured pools irrespective of the PDSN SM group type.

Local Time-Zone in PCF Security Associations

For PDSN 2.1 devices, you cannot configure the local time-zone in PCF security associations (Service Manager > Service Activation > PCF Security Associations), when the security key is of Hex format. The local time-zone check box is disabled when you select a security key of Hex format.

Options in Show command

PDSN SM supports only the first level options of all the show commands. For more information, see the "Show Commands" section in the User Guide for Cisco Packet Data Serving Node Service Manager.

Configuring session redundancy

Session redundancy configuration is enabled only in MWAM devices. But, you can use PDSN SM to configure these commands on Cisco 7200 and MWAM devices by choosing Service Manager > Service Activation > Session Redundancy.

Known Problems

Table 5 describes the known problems in PDSN SM. Refer the Release Notes for Mobile Wireless Center for Cisco Mobile Exchange for information on caveats related to the MWC for the Cisco Mobile Exchange Service Managers. See, http://www.cisco.com/en/US/products/ps6401/prod_release_note09186a0080490f51.html#wp38543


Note To obtain more information about known problems, you can access the Cisco Software Bug Toolkit at http://www.cisco.com/cgi-bin/Support/Bugtool/home.pl. You will be prompted to log in to Cisco.com.


Table 5 Known Problems in PDSN SM 

Bug ID
Summary
Explanation

CSCsc19877

In User Session Parameters, the GUI shows a blank field for maximum mobile sessions when you configure the default value.

When you configure the maximum mobile sessions as 20000 (default value), the GUI shows a blank field. The corresponding command is generated and downloaded to the device; even though the value does not appear in the GUI.

Workaround:

None.

CSCsc17290

You are able to see the AAA password configured in user session parameters.

When you click List to view the current user session configuration or Execute to configure the user session parameters (Service Manager > Service Activation > User Session Parameters), you can see the AAA password.

Workaround:

None.

CSCsc08624

Sorting of service-activation tables by using IP Address, SPI, and so on is not accurate.

In some service-activation screens such as PCF security associations (using Peer Identity or SPI), MoIP security associations (using NAI string or SPI), sorting is not accurate.

Workaround:

None.


Product Documentation


Note Cisco Systems sometimes update the printed and electronic documentation after original publication. Therefore, you should also review the documentation on Cisco.com for any updates.


Table 6 describes available product documentation.

Table 6 Product Documentation 

User Guide for Cisco Packet Data Serving Node Service Manager

PDF on the product CD-ROM.

On Cisco.com at this URL:
http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/
mwc4cmx/pdsn_sm/pdsnsm40/uguide/index.htm

Release Notes for Cisco Packet Data Serving Node Service Manager, Release 4.0 (this document)

PDF on the product CD-ROM.

On Cisco.com at this URL:

http://www.cisco.com/en/US/products/ps6696/prod_release_note09186a008055488b.html

Printed document available by order (part number
DOC- 7817095=).1

Context-sensitive online help

Select an option from the navigation tree, then click Help.

Click the Help button in the dialog box.

1 See the Obtaining Documentation.


Related Documentation

Table 7 describes available related documentation for the Cisco PDSN Service Manager.

Table 7 Related Documentation 

Document Title
Description and Available Formats

Release Notes for Mobile Wireless Center for Cisco Mobile Exchange 4.0

On Cisco.com at
http://www.cisco.com/en/US/products/ps6401/
prod_release_note09186a0080490f51.html

CiscoWorks LAN Management Solution documents

On Cisco.com at:

http://www.cisco.com/en/US/products/sw/cscowor/ps2425/tsd_products_support_series_home.html

Installation and Setup Guide for CiscoWorks Common Services 3.0 (Includes CiscoView) on Solaris

On Cisco.com at:

http://cisco.com/en/US/products/sw/cscowork/ps3996/products_installation_guide_book09186a00801e8b87.html

Readme for Common Services 3.0 Service Pack 2 on Solaris

On Cisco.com at:

http://cisco.com/en/US/products/sw/cscowork/ps3996/prod_installation_guide09186a008048e152.html

User Guide for CiscoWorks Common Services 3.0

On Cisco.com at:

http://www.cisco.com/en/US/products/sw/cscowork/ps3996/products_user_guide_book09186a00801e8b82.html

User Guide for Resource Manager Essentials 4.0

On Cisco.com at:

http://cisco.com/en/US/products/sw/cscowork/
ps2073/products_user_guide_book09186a008026e94c.html


Obtaining Documentation

Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several ways to obtain technical assistance and other technical resources. These sections explain how to obtain technical information from Cisco Systems.

Cisco.com

You can access the most current Cisco documentation at this URL:

http://www.cisco.com/techsupport

You can access the Cisco website at this URL:

http://www.cisco.com

You can access international Cisco websites at this URL:

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

Product Documentation DVD

Cisco documentation and additional literature are available in the Product Documentation DVD package, which may have shipped with your product. The Product Documentation DVD is updated regularly and may be more current than printed documentation.

The Product Documentation DVD is a comprehensive library of technical product documentation on portable media. The DVD enables you to access multiple versions of hardware and software installation, configuration, and command guides for Cisco products and to view technical documentation in HTML. With the DVD, you have access to the same documentation that is found on the Cisco website without being connected to the Internet. Certain products also have .pdf versions of the documentation available.

The Product Documentation DVD is available as a single unit or as a subscription. Registered Cisco.com users (Cisco direct customers) can order a Product Documentation DVD (product number DOC-DOCDVD=) from Cisco Marketplace at this URL:

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

Ordering Documentation

Beginning June 30, 2005, registered Cisco.com users may order Cisco documentation at the Product Documentation Store in the Cisco Marketplace at this URL:

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

Nonregistered Cisco.com users can order technical documentation from 8:00 a.m. to 5:00 p.m. (0800 to 1700) PDT by calling 1 866 463-3487 in the United States and Canada, or elsewhere by calling 011 408 519-5055. You can also order documentation by e-mail at tech-doc-store-mkpl@external.cisco.com or by fax at 1 408 519-5001 in the United States and Canada, or elsewhere at 011 408 519-5001.

Documentation Feedback

You can rate and provide feedback about Cisco technical documents by completing the online feedback form that appears with the technical documents on Cisco.com.

You can send comments about Cisco documentation to bug-doc@cisco.com.

You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address:

Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883

We appreciate your comments.

Cisco Product Security Overview

Cisco provides a free online Security Vulnerability Policy portal at this URL:

http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

From this site, you can perform these tasks:

Report security vulnerabilities in Cisco products.

Obtain assistance with security incidents that involve Cisco products.

Register to receive security information from Cisco.

A current list of security advisories and notices for Cisco products is available at this URL:

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

If you prefer to see advisories and notices as they are updated in real time, you can access a Product Security Incident Response Team Really Simple Syndication (PSIRT RSS) feed from this URL:

http://www.cisco.com/en/US/products/products_psirt_rss_feed.html

Reporting Security Problems in Cisco Products

Cisco is committed to delivering secure products. We test our products internally before we release them, and we strive to correct all vulnerabilities quickly. If you think that you might have identified a vulnerability in a Cisco product, contact PSIRT:

Emergencies — security-alert@cisco.com

An emergency is either a condition in which a system is under active attack or a condition for which a severe and urgent security vulnerability should be reported. All other conditions are considered nonemergencies.

Nonemergencies — psirt@cisco.com

In an emergency, you can also reach PSIRT by telephone:

1 877 228-7302

1 408 525-6532


Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product to encrypt any sensitive information that you send to Cisco. PSIRT can work from encrypted information that is compatible with PGP versions 2.x through 8.x.

Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page at this URL:

http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

The link on this page has the current PGP key ID in use.


Obtaining Technical Assistance

Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco Technical Support & Documentation website on Cisco.com features extensive online support resources. In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not have a valid Cisco service contract, contact your reseller.

Cisco Technical Support & Documentation Website

The Cisco Technical Support & Documentation website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies. The website is available 24 hours a day, at this URL:

http://www.cisco.com/techsupport

Access to all tools on the Cisco Technical Support & Documentation website requires a Cisco.com user ID and password. If you have a valid service contract but do not have a user ID or password, you can register at this URL:

http://tools.cisco.com/RPF/register/register.do


Note Use the Cisco Product Identification (CPI) tool to locate your product serial number before submitting a web or phone request for service. You can access the CPI tool from the Cisco Technical Support & Documentation website by clicking the Tools & Resources link under Documentation & Tools. Choose Cisco Product Identification Tool from the Alphabetical Index drop-down list, or click the Cisco Product Identification Tool link under Alerts & RMAs. The CPI tool offers three search options: by product ID or model name; by tree view; or for certain products, by copying and pasting show command output. Search results show an illustration of your product with the serial number label location highlighted. Locate the serial number label on your product and record the information before placing a service call.


Submitting a Service Request

Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests. (S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information.) After you describe your situation, the TAC Service Request Tool provides recommended solutions. If your issue is not resolved using the recommended resources, your service request is assigned to a Cisco engineer. The TAC Service Request Tool is located at this URL:

http://www.cisco.com/techsupport/servicerequest

For S1 or S2 service requests or if you do not have Internet access, contact the Cisco TAC by telephone. (S1 or S2 service requests are those in which your production network is down or severely degraded.) Cisco engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly.

To open a service request by telephone, use one of the following numbers:

Asia-Pacific: +61 2 8446 7411 (Australia: 1 800 805 227)
EMEA: +32 2 704 55 55
USA: 1 800 553-2447

For a complete list of Cisco TAC contacts, go to this URL:

http://www.cisco.com/techsupport/contacts

Definitions of Service Request Severity

To ensure that all service requests are reported in a standard format, Cisco has established severity definitions.

Severity 1 (S1)—Your network is "down," or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.

Severity 2 (S2)—Operation of an existing network is severely degraded, or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products. You and Cisco will commit full-time resources during normal business hours to resolve the situation.

Severity 3 (S3)—Operational performance of your network is impaired, but most business operations remain functional. You and Cisco will commit resources during normal business hours to restore service to satisfactory levels.

Severity 4 (S4)—You require information or assistance with Cisco product capabilities, installation, or configuration. There is little or no effect on your business operations.

Obtaining Additional Publications and Information

Information about Cisco products, technologies, and network solutions is available from various online and printed sources.

Cisco Marketplace provides a variety of Cisco books, reference guides, documentation, and logo merchandise. Visit Cisco Marketplace, the company store, at this URL:

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

Cisco Press publishes a wide range of general networking, training and certification titles. Both new and experienced users will benefit from these publications. For current Cisco Press titles and other information, go to Cisco Press at this URL:

http://www.ciscopress.com

Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments. Each quarter, Packet delivers coverage of the latest industry trends, technology breakthroughs, and Cisco products and solutions, as well as network deployment and troubleshooting tips, configuration examples, customer case studies, certification and training information, and links to scores of in-depth online resources. You can access Packet magazine at this URL:

http://www.cisco.com/packet

iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions. You can access iQ Magazine at this URL:

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

or view the digital edition at this URL:

http://ciscoiq.texterity.com/ciscoiq/sample/

Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL:

http://www.cisco.com/ipj

Networking products offered by Cisco Systems, as well as customer support services, can be obtained at this URL:

http://www.cisco.com/en/US/products/index.html

Networking Professionals Connection is an interactive website for networking professionals to share questions, suggestions, and information about networking products and technologies with Cisco experts and other networking professionals. Join a discussion at this URL:

http://www.cisco.com/discuss/networking

World-class networking training is available from Cisco. You can view current offerings at this URL:

http://www.cisco.com/en/US/learning/index.html