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Release Notes for Cisco MPLS Tunnel Builder Version 1.0

Release Notes for Cisco MPLS Tunnel Builder Version 1.0

March 6, 2002


Note   You can find the most current Cisco IOS documentation on Cisco.com. These electronic documents might contain updates and modifications made after the hardcopy documents were printed.

These release notes contain platform and system requirements and instructions for installing and setting up Version 1.0 of the Cisco MPLS Tunnel Builder.

Cisco MPLS Tunnel Builder is a web-based graphical application for configuring and visualizing Multiprotocol Label Switching (MPLS) tunnels as well as viewing performance statistics using the Service Assurance Agent (SAA) on supported Cisco IOS platforms.

For an online copy of these release notes, go to the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/tnlbldr/tb1_0/tbreln10.htm

Contents

These release notes contain the following sections:

Introduction

Cisco MPLS Tunnel Builder displays a Traffic Engineering (TE) topology map on the right of the browser window and a series of tabs on the left side. A status message window is provided on the right side at the bottom that displays server and device information messages. The user may interact with the network map using the mouse as well as view information about the nodes, links, and tunnels on the network map using the tabs.

The left side of the browser window consists of the following tabs:

System Requirements

Hardware Supported

Cisco MPLS Tunnel Builder can be used on any hardware platform that supports MPLS Traffic Engineering. For Version 1.0, these platforms include the following:

Disk Space Requirements

The installation of the Cisco MPLS Tunnel Builder Version 1.0 requires that you have 90 MB of free disk space.

Operating Systems Supported

Cisco MPLS Tunnel Builder Server

The Tunnel Builder server must be running on a web server that can handle Java and provide the Cisco MPLS Tunnel Builder Java applet to a web browser. For Tunnel Builder Version 1.0, the Tunnel Builder server can run on the following:

Cisco MPLS Tunnel Builder Client

For Cisco MPLS Tunnel Builder Version 1.0, the Tunnel Builder client can run on the following:

Web Browsers Supported

Cisco MPLS Tunnel Builder Version 1.0 requires one of the following web browsers and the Java Plug-in specified below:

Windows 2000 and Windows NT—If you are using Netscape Version 4.7, you need to install the Java Plug-in Version 1.3 before running Tunnel Builder.

Solaris—If you run the Solaris Version 2.8 client, use the Netscape browser Version 4.79 with the Java Plug-in Version 1.3.1.01. In the .cshrc file, set the plugin path. Example:

setenv NPX_PLUGIN_PATH~java/j2rel_3_1_01/plugin/sparc/ns4

Cisco IOS Releases Supported

The Tunnel Builder application supports devices running the following Cisco IOS releases:

Installing and Starting Cisco MPLS Tunnel Builder

This section includes the following topics:

Installation for Solaris

To install and start the Tunnel Builder application on Solaris systems, perform the following steps:


Step 1   Copy the tb-1.0.x-kit-sol.tar and tb-1.0.x-setup-sol.sh files from the CD to a temporary directory or a directory under your web server doc directory in which you plan to install the application, for example, /scratch/suitespot/docs/TunnelBuilder.

Step 2   Make sure that you can execute the tb-1.0.x-setup-sol.sh script:

chmod 755 tb-1.0.x-setup-sol.sh

The x completes the version number. For example, the version number might be 1.0.1.

Step 3   Log in as root.

$ su root password: <password>

Step 4   Run the tb-1.0.x-setup-sol.sh file.

web-server-doc-dir% ./tb-1.0.x-setup-sol.sh

The setup file, tb-1.0.x-setup-sol.sh, runs a script that asks you where you want to locate the Cisco MPLS Tunnel Builder files. Enter the full path of your web server doc directory.

Where (in what directory) would you like the Tunnel Builder client and server to be installed? /scratch/suitespot/docs/TunnelBuilder

After the Cisco MPLS Tunnel Builder files are copied and installed, you are asked to enter a license key and configure several options, as follows:

Please enter the license key license-key What port would you like to use for the Tunnel Builder client and server communication? [7271] Would you like to receive SNMP trap notification of links and tunnels changing status? [no] What port would you like to use for receiving UDP datagrams? [162] What SNMP community string would you like to use? [public] Would you like to run the Tunnel Builder server in debug mode? [no] Would you like to enable logging of Tunnel Builder commands and logging of commands sent to the router? [no] Would you like to disable Tunnel Builder's use of the Cisco Discovery Protocol (CDP)? [no]

Step 5   When the installation script is complete, you are asked if you want to run the server automatically.

To start the server manually, you execute a startTopoServer command from your web server doc directory.

cd /scratch/suitespot/docs/TunnelBuilder/serverkit web-server-doc-dir% ./startTopoServer

Step 6   To start the Tunnel Builder application, use your web browser to find and select the ServerControl.html file, for example, http://< server-host-name>/TunnelBuilder/clientkit/ServerControl.html.

To access the Tunnel Builder application from your laptop, use your web browser to find and select the ServerControlLaptop.html file, for example, http://< server-host-name>/TunnelBuilder/clientkit/ServerControlLaptop.html.

The Tunnel Builder application is displayed in your browser window.

Step 7   To access Cisco MPLS Tunnel Builder online help, click the Help button. This link is located in the browser window at the top right in the Tunnel Builder banner. See Figure 1.


Figure 1: Cisco MPLS Tunnel Builder Banner and Help Button



Installation on Microsoft Windows NT and Windows 2000

To install and start the Tunnel Builder application on Microsoft Windows NT or Windows 2000 systems, perform the following steps:


Step 1   Copy the tb-1.0.x-setup-win32.exe file to a directory on your Windows NT or Windows 2000 system.

Step 2   Double-click the tb-1.0.x-setup-win32.exe file to install the Cisco MPLS Tunnel Builder application. The x completes the version number. For example, the version number might be 1.0.1.

The Installing Cisco MPLS Tunnel Builder dialog box appears (see Figure 2). You can choose to install the application in the default location C:\Program Files\TunnelBuilder or click Browse to set up an alternate destination directory for Tunnel Builder.


Figure 2: Installing Cisco MPLS Tunnel Builder Dialog Box


Click Start to continue the installation. After the Tunnel Builder files are copied to your directory, an Installing Cisco MPLS Tunnel Builder dialog box appears, similar to Figure 3.


Figure 3: Installing Cisco MPLS Tunnel Builder Dialog Box


Step 3   Check either, both, or neither of the following: View Readme File or Run Installed Application. If you check both and click OK, the following occurs:


Figure 4: Cisco MPLS Tunnel Builder Licensing Dialog Box


Step 4   Enter your License key in the space provided and click OK. The Cisco MPLS Tunnel Builder Server configuration dialog box appears (see Figure 5).


Figure 5: Cisco MPLS Tunnel Builder Server Configuration Dialog Box


Step 5   In the Cisco MPLS Tunnel Builder Server configuration dialog box:


Figure 6: Debug Mode Options


After making your choices, click OK. The installation creates a TBConfig.txt file that contains your choices. An HTML file that sets up communication between the Cisco MPLS Tunnel Builder server and client is also updated with the port numbers to use for communications.

Step 6   If you did not start the Tunnel Builder server during the installation, choose Start > Programs > TunnelBuilder > start Tunnel Builder Server to start the Tunnel Builder server. Figure 7 shows an example of the Tunnel Builder server execution commands.


Figure 7: Tunnel Builder Server Execution Commands




The Tunnel Builder Server configuration dialog box (see Figure 5) appears if you did not already start the Tunnel Builder server during installation.

Step 7   Choose Start > Programs > TunnelBuilder > Tunnel Builder Window to start the Tunnel Builder application in your browser window.

Step 8   To access Tunnel Builder online help, click the Help button. This link is located in the browser window at the top right in the Tunnel Builder banner. Figure 8 shows the Tunnel Builder banner and the position of the Help button.


Figure 8: Cisco MPLS Tunnel Builder Banner and Help Button



Uninstalling Cisco MPLS Tunnel Builder for Microsoft Windows NT and Windows 2000

To uninstall Cisco MPLS Tunnel Builder, perform the following steps:


Step 1   Choose Start > Programs > TunnelBuilder > Uninstall. You are asked to verify that you want to uninstall Cisco MPLS Tunnel Builder (see Figure 9).


Figure 9: Verification Dialog Box


Step 2   Click Yes, if you want to uninstall Cisco MPLS Tunnel Builder. The Uninstalling TunnelBuilder window appears (see Figure 10).


Figure 10: Uninstalling TunnelBuilder Window


Step 3   Select the HTML files and the TBConfig.txt files. Click Delete. If you have added seed routers and want to save them, do not select them, and do not click Delete All.

Step 4   Cick Close to exit from the Uninstalling Tunnel Builder window.


New Features in Version 1.0

This section describes the features for Cisco MPLS Tunnel Builder Version 1.0. The Tunnel Builder application includes a network map and features for managing tunnels as well as for managing links and devices. Specific features are described in the following sections:

Network Map

The network map includes topologies based on Multiprotocol Label Switching (MPLS) and the Cisco Discovery Protocol (CDP). The network map also contains tunnel information obtained directly from each device through MPLS or CDP. When a network map is generated, the Tunnel Builder application obtains all the MPLS information, CDP information, traffic engineering (TE) information, and device configuration by directly accessing the devices. Cached data for this information can also be accessed from the server.

Seed Routers

The Tunnel Builder application references network maps based on a seed router. The seed router provides the MPLS-based topology information and is the device through which the search for CDP neighbors begins. The Tunnel Builder application maintains a list of known seed routers. You can add or delete seed routers from the Seed Routers List.

MPLS-Based Topology

The Tunnel Builder application generates a list of network nodes and links based on the MPLS topology read from the seed router. Based on the generated list, the Tunnel Builder application accesses each device to read device configuration information. Using the gathered information, the Tunnel Builder application can manage the devices, links, and MPLS TE tunnels that make up the network map.

CDP-Based Topology

The Tunnel Builder map contains network nodes and links found by CDP. The Tunnel Builder application accesses these devices to obtain and manage the device's configuration information. If the devices are not running CDP, the network map includes only those devices listed in the MPLS topology information.

Mapping Choices

You can view these subsets of the network topology:

Maintaining Network Map Information

The network topology is read any time that a new seed router is specified and you request a map. You can also request an update to the map for a given seed router. You can update the map with the present seed router by clicking Fetch from Network. After specifying a new seed router you can update the map by clicking either Fetch button.

Device Management

Most of Tunnel Builder features described in the following section relate to the configuration of a single device. However, the Tunnel Builder application provides as much information as it can about all devices in the network map. The following features allow you to manage devices.

Viewing Device Configuration Information

The Tunnel Builder application gathers and displays the following configuration information about each device in the network map:

MPLS Tunnels Headed by Device

The Tunnel Builder application provides you with a list of MPLS tunnels headed by a specific device.

Committing Changes to Device Configurations

The Tunnel Builder application allows you to save changes to the configuration information of the device and write the current running configuration into nonvolatile memory. You accomplish this by clicking "Commit changes" in the Setup tab.

Link Management

The following features of the Tunnel Builder application allow you to monitor links.

Viewing Link Configuration Information

The Tunnel Builder application gathers and displays the following information about the interfaces for each link in the network map:

Link Up/Down Event Notification

The Tunnel Builder application provides timely notification to the user of interface up or interface down events that affect any of the links in a network map.

Updating Link Bandwidth Information

The Tunnel Builder application supplies bandwidth information (allocated, global pool, and subpool numbers) on a per-priority basis for every link in the network. The application reads this information from the output of the show mpls traffic topology command. The bandwidth information is accurate as of the last Interior Gateway Protocol (IGP) update that occurred on the network.

The IGP update process is completely separate from the Tunnel Builder application and any Tunnel Builder map updates that occurs. The time between IGP updates is determined by a router configuration setting and by a router threshold that is triggered when a tunnel tries to come up, but does not have the bandwidth.

The Tunnel Builder application provides an update button that causes the Tunnel Builder server to go out to the seed router, get the MPLS topology, and update the bandwidth information for every link in the map. This button allows you to get bandwidth information that is accurate as of the last IGP update.

Tunnel Management

The following features of the Tunnel Builder application allow you to manage tunnels.

Viewing and Monitoring Tunnels

The Tunnel Builder application gathers and displays the following configuration information about the MPLS tunnels found in a network map:

Tunnel Up/Down Event Notification

The Tunnel Builder application provides you with timely notification of a link up or link down event that affects any tunnels in a network map.

Creating a Tunnel

You can create MPLS tunnels with a wide variety of configurations with the Tunnel Builder application. You must use the following configuration parameters:

Using the parameters described below, you can create one or more identically configured tunnels.


Note   The maximum number of tunnels that you can create in a batch depends upon Cisco IOS support for the platform as a tunnel head or midpoint. For details, see MPLS Traffic Engineering (TE)—Scalability Enhancements.

Path Options

A tunnel may have more than one path option. Path options are numbered. The lowest numbered option is used first, if available.You can specify the following types of path options with the Tunnel Builder application:

Optional MPLS Tunnel Parameters

The settings for the following MPLS tunnel parameters are optional. If you do not specify a value for these parameters, the default values are used.

Directing Traffic into an MPLS Tunnel

To direct traffic into an MPLS tunnel with the Tunnel Builder application, you create a tunnel with autoroute enabled. Traffic can also be directed into an MPLS tunnel by defining a static route on the head device. You can create and delete static routes from the Nodes tab.

Modifying or Deleting a Tunnel

You can modify the following parameters for a specified tunnel using the Tunnel Builder application:

You can use the Tunnel Builder application to delete an existing tunnel based on the head device and tunnel number. You can select multiple tunnels for deletion in a single operation.


Note   When a tunnel is deleted that uses an explicit path, the explicit path is not automatically removed.
When a tunnel is deleted that uses a static route, the static route is not automatically removed.

Creating and Deleting Explicit Paths

You can define an explicit path on a specified device using the Tunnel Builder application. You can use explicit paths in conjunction with defining the path options of an MPLS tunnel.

To create an explicit path, you must specify the following information:

The Tunnel Builder application provides information about the bandwidth available along with an explicit path. The bandwidth available on an explicit path is equal to the bandwidth available on the link within the explicit path that has the least available bandwidth.

You can delete an existing explicit path on a specified device based on the explicit path name.

Security

The Cisco MPLS Tunnel Builder application provides means to ensure security when accessing routers. The application uses a combination of a user name, login password, and enable password to authenticate a user on a selected seed router (see Figure 11). Tunnel Builder uses the user name, password, and enable password combination that you entered as the default authentication information for all other routers in the network map. All routers are accessed using the same user name. If a router does not require a user name when you log in, then the user name is not sent to the router. However, the server uses the user name for client identification.

You are allowed to use different login and enable passwords on different routers through the use of a separate password file. This password file contains one line for each router using any passwords that are different from those in the default authentication information. You have the option of creating this password file when you access the Tunnel Builder application. Figure 11 shows the Authentication dialog box for the seed router that contains a Create password file check box.


Figure 11: Authentication Dialog Box


To create a password file, check the Create password file check box. The Create Password File dialog box appears for the seed router for the username (see Figure 12).


Figure 12: Create Password File Dialog Box


The routers are defined in the password file using their TE Ids. You can select and add a TE Id and enter the its associated login password and enable password in the Create Password File dialog box. The format of the file is as follows:

    #comment - the passwords for node 2.2.2.2 TEId:2.2.2.2:password:red:enablepw:blue # the passwords for node 3.3.3.3 TEId:3.3.3.3:password:yellow:enablepw:green # this router uses the same enable password as the default TEId:4.4.4.4:password:brown # if the router requires a null password TEId:5.5.5.5:password::enablepw:gray

The password file uses the filename username_1_2_3_4.txt, where username is the user name and 1.2.3.4 is the IP address of the seed router.

The Tunnel Builder server performs this authentication process and returns a message to the Tunnel Builder client indicating if the authentication was successful or not. Only users that are successfully authenticated are allowed to fetch the MPLS and CDP topologies to construct a network map.

When you perform a command that changes the configuration of a router, for example, create tunnel, modify tunnel, delete tunnel, modify link, and start rtr, Tunnel Builder uses your authentication information and the additional passwords found in the password file to make the change. If another user performs a fetch from server on the same seed router, they are authenticated and receive the cached network map that was actually read from the network using the first user's authentication information and password file.

You cannot make changes to a router without having valid password information.

Licensing

To install Cisco MPLS Tunnel Builder Version 1,0, you must enter an authorized license key. This license key is specified on your Right to Use document included in your product. This license key authorizes a maximum number of traffic engineering (TE)-enabled routers in the TE topology for any single seed router, dependent on your order.

On Windows systems, the first time the server is started after the installation completes, the application displays a Cisco MPLS Tunnel Builder licensing dialog box. After you enter your license key in this dialog box and click OK, the application creates a license.dat file. If a license.dat file exists in the server kit directory, you do not get the dialog box to enter the license key.

On Solaris systems, the application prompts you for a license key during setup.

Once you approach the limit of the license, you are notified by a message, like the following:

Number of TE routers (xxx) in the 1.2.3.4 network exceeds the number allowed by your Tunnel Builder license (yyy). Please contact your administrator.

Where:

You can choose to upgrade the maximum number of TE-enabled routers supported for any single seed router in Tunnel Builder. You will need a new Right to Use document and a new authorized license key(s) for each level through which you upgrade.

Right to Use documents and authorized license keys are available for the following levels:

Online Help System

The Tunnel Builder online help system uses your default web browser. Supported browsers are Netscape Navigator (Version 4.5 or later) and Internet Explorer (Version 5 or later).

Limitations and Restrictions

Netscape Version 4.7 and the Java Plug-in Version 1.3

You must install the Java Plug-in Version 1.3 before attempting to run the Cisco MPLS Tunnel Builder Version 1.0 client on a Microsoft Windows machine using the Netscape Communicator Version 4.7 browser. Alternatively, you can use the Netscape Version  4.5 browser or Internet Explorer Version 6.0 browser where you are prompted to download Java Plug-in Version 1.3, if it is not already installed.

Displaying Larger Numbers of Nodes

Displaying a topology map with a large number of nodes makes the map less readable. You can use the "+" button to zoom in on specific areas of the map for a more readable view.

Caveats

Caveats describe unexpected behavior in Cisco MPLS Tunnel Builder software releases. Severity 1 caveats are the most serious; severity 2 caveats are less serious. Severity 3 caveats are moderate caveats, and only selected severity 3 caveats are included in the caveats document.

This section contains open caveats for the current Cisco MPLS Tunnel Builder release.

Open Caveats—Cisco MPLS Tunnel Builder Version 1.0

This section describes possibly unexpected behavior by Cisco MPLS Tunnel Builder Version 1.0. This section describes only severity 1, severity 2 and selected severity  3 caveats.

Netscape Version 4.7 cannot find the Java Plug-in Version 1.3, which is required for running Cisco MPLS Tunnel Builder Version 1.0.

Workaround: You must install the Java Plug-in Version 1.3 before attempting to run the Cisco MPLS Tunnel Builder Version 1.0 client on a Microsoft Windows machine using the Netscape Communicator Version 4.7 browser. Alternatively, you can use the Netscape Version  4.5 browser or Internet Explorer Version 6.0 browser where you are prompted to download Java Plug-in Version 1.3 if it is not already installed.

When you install Cisco MPLS Tunnel Builder on the server, you can choose an SMNP trap reporting option. The default port is port 162. In some cases, port 162 might interfere with other network management processes. Port 162 is also the standard port for UDP communications. You need to be aware of these issues and set up traps on another port during the installation if you foresee a conflict within your network.

Workaround: Set up SNMP trap reporting on a port other than 162.

Occasionally, when you cancel a fetch from server, the Setup tab fails to come back to allow a subsequent fetch.

Workaround: Reload or refresh the browser.

If you attempt to create a static route on a router that has the same destination prefix, mask, and tunnel TE Id for the next hop as an existing static route on that router, the Cisco MPLS Tunnel Builder client could display an error message that indicates a lost connection to the server.

Workaround: Do not attempt to create a static route that already exits on the router.

When you select a tunnel(s) in the Tunnel pane, some links are not highlighted in blue if you are displaying the topology map in either the Hierarchical or Orthogonal layout styles. Links are highlighted in blue if you are displaying the topology map in either the Symmetric or Circular layout styles.

Workaround: Use the Symmetric or Circular layout if you experience this problem.

If an improperly configured router exists in the network, using the Update button in the Links panel causes the Cisco MPLS Tunnel Builder server to produce the following error:

    Error:Interface 0.0.0.0 not found in topology for seed 172.27.232.160
Workaround: Ensure that all nodes on your network map are configured properly for Traffic Engineering (TE). Examine your network map for nodes with a TE Id of 0.0.0.0 and reconfigure these nodes for TE.

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 the following sites:

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:

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

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

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

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:

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.




Copyright © 2002, Cisco Systems, Inc.
All rights reserved.


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Posted: Fri Mar 29 09:47:39 PST 2002
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