Cisco Systems OL-10426-01 User Manual

Cisco WAN Modeling Tools User Guide

Release 15.3.00 May 2006
Corporate Headquarters
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Customer Order Number: Text Part Number: OL-10426-01
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All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (0601R)
Cisco WAN Modeling Tools Guide
Copyright © 2006, Cisco Systems, Inc. All rights reserved.
Preface ix
Related CWM and Switch Documentation ix
Obtaining Documentation x
Cisco.com xi Documentation DVD xi Ordering Documentation xi
Documentation Feedback xi
Cisco Product Security Overview xii
Reporting Security Problems in Cisco Products xii
Obtaining Technical Assistance xiii
Cisco Technical Support Website xiii Submitting a Service Request xiii Definitions of Service Request Severity xiv

CONTENTS

CHAPTER
CHAPTER
Obtaining Additional Publications and Information xiv
1 Overview of the WAN Modeling Tools 1-1
Cisco WAN Modeling Tools Overview 1-1
Functionality of the NMT 1-2
Cisco Products Supported by the NMT 1-3
Basic Usage/Charter Functionality 1-4
Gaps 1-5
Data Translation Tools 1-6
2 Installing the Cisco WAN Modeling Tools 2-1
System Requirements 2-1
Installing the NMT 2-2
Installing the NMT on a UNIX Platform 2-2 Installing the NMT on a PC Platform 2-5
Upgrading the NMT Software 2-6
Starting the NMT 2-6
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Removing NMT 2-7
Installing a Cisco WAN Modeling Tools Sub-application 2-7
Installing the Cisco WAN Modeling Tools sub-applications on a UNIX Platform 2-8
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Contents
Installing the SSI on a PC Platform 2-8
Removing Sub-applications 2-9
Troubleshooting NMT Installation 2-9
CHAPTER
3 Using the NMT 3-1
NMT Startup 3-1
NMT Menu Bar 3-2
File Menu 3-3
Configure Menu 3-4 Execute Menu 3-7
Display Menu 3-7
Report Menu 3-8 Maintenance Menu 3-9 Help Menu 3-9 Quit 3-9
Keyboard Commands 3-9
Help Keys 3-11 Message Keys 3-11
Modeling Processes 3-11
Error Checking 3-12
Troubleshooting NMT 3-13
CHAPTER
iv
4 Configuration Tables and Fields 4-1
General Table Information 4-1
Sites Table 4-2
Configuring Sites Example 4-6
Links Table 4-6
Minimal Link Table Usage 4-7
Link Special Cases 4-10
IMATM Trunks 4-10 Virtual Trunks 4-11
Voice Table 4-11
Data Table 4-14
Bursty Table 4-17
Bursty Table Special Cases 4-23
Interface Table 4-24
Feeder Table 4-26
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Card Table 4-27
Groups and Network Table 4-28
Nodes Table 4-29
Network Settings 4-29
Model Options 4-31
Feeders 4-32
Modeling Implicit Feeders 4-32 Modeling Explicit Feeders 4-34
Obsolete Products 4-35
Networks with Access Feeders or Access Concentrators 4-36
FastPAD 4-38
Port Concentrator 4-41
Tiered Networks 4-42
Contents
CHAPTER
CHAPTER
5 NMT Execute Commands 5-1
Using the Route Command 5-1
AutoRoute 5-1
AutoRoute Least Cost Routing 5-1
Preferred and Directed Routes 5-2
PNNI Routing 5-3
Partitioned AutoRoute/PNNI Network 5-3
Fail Analysis Command 5-4
Build Sites Command 5-4
Optimize Command 5-5
NMT Command Results 5-6
6 NMT Reports 6-1
Site Report 6-1 Link Report 6-1 Network Summary Report 6-1 Link Load Report 6-2 ATM & FR Ports Report (or Bursty Data Ports Report) 6-3 Data & Voice Ports Report (or Voice & Data Ports Report) 6-3 Connection Routes Report 6-3 Failed Connections Report 6-3 Parts List Report 6-4 Resource Report/Card Statistics Report 6-4 PNNI Topology Report 6-5
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Contents
View Summary 6-5
Using the Map Tool 6-5
CHAPTER
CHAPTER
7 NMT Utilities Command Line 7-1
8 NMT Map 8-1
NMT Map Startup 8-1
Navigating Though a Network View 8-3
Obtaining Link Information - Physical Links 8-5
Obtaining Link Information - Logical Links 8-5
Zooming the Map 8-6
Panning the Map 8-7
Map Color Coding 8-7
Controlling Map Displays in NMT 8-7
NMT Map Main Menu 8-8
Adding New Groups 8-10
Adding Nodes to Existing Groups 8-11
Deleting Groups 8-12
Deleting Nodes or Groups from Existing Groups 8-12
Saving Your Work 8-13
CHAPTER
CHAPTER
Retrieving Map Data Into NMT 8-14
Using the Map Tool with Fail Analysis 8-14
Using the Map Tool to Analyze Traffic Levels 8-14
9 Configuration Extraction Tool 9-1
Fields Addressed by CET 9-1
Using the CET 9-2
Other CET Commands 9-4
AIX Platform Support 9-5
Troubleshooting CET 9-5
Remote CET Extracts 9-8
Troubleshooting 9-10
10 WANDL — Third-Party Interface 10-1
Translating Between NMT and WANDL Formats 10-1
Converting NMT Configuration Files into WANDL Files 10-2
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Converting WANDL Files into NMT .cnf Files 10-4
Contents
CHAPTER
CHAPTER
I
NDEX
11 SpreadSheet Interface 11-1
NMT to Microsoft Excel 11-1
Microsoft Excel to NMT 11-4
Usage Review 11-5
SSI TroubleShooting 11-6
12 Cisco Network Designer Importer 12-1
CND PC Import Utilities 12-1
Installing the NMT2CND file 12-1 Nmt2Cnd Operating Instructions 12-2 Installing The DBF2Cnd Utility 12-2 DBF2Cnd Operating Instructions 12-3 CND PC Utilities 12-4
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Contents
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Preface
The Cisco WAN Modeling Tools User Guide provides instructions for using the WAN Modeling Tools, a design aid for WANs. The WAN Modeling Tools consist of the following software tools:
Network Modeling Tool (NMT). UNIX and PC versions are available.
Map Tool to display a graphical model of network topology.
Configuration Extraction Tool (CET) for retrieving existing topologies from the Cisco Wan Manager
(CWM) database.
Conversion Plug-ins: the Third-Party Interface (TPI) for sharing NMT information with WANDL
and the SpreadSheet Interface (SSI) for exchanging NMT configurations with Microsoft Excel. These tools are integrated into NMT, but are also available as UNIX stand alone commands.
Cisco Network Designer (CND) importing tool for importing and storing topologies in a project
format.
The guide is written for anyone who operates or manages a WAN and has a general understanding of data communications concepts, some knowledge of UNIX and/or PC desktop, and knowledge of the interfaces used by devices connected to their WAN.

Related CWM and Switch Documentation

A Guide to Cisco Multiservice Switch Documentation ships with your product. This guide contains general information about how to locate Cisco MGX, BPX, SES, and CWM documentation online.
These documents comprise the CWM documentation set. The first five documents are on the CWM Documentation CD and on Cisco.com:
Cisco WAN Manager Installation Guide, Release 15.3.00
Cisco WAN Manager User’s Guide, Release 15.3.00
Cisco WAN Manager SNMP Service Agent Guide, 15.3.00
Cisco WAN Manager Database Interface Guide, Release 15.3.00
Cisco WANDEST Installation and Reference, Release 2.7
These documents are available on Cisco.com:
Release Notes for Cisco WAN Manager, Release 15.3.00
Release Notes for the Cisco WAN Modeling Tools, Release 5
Cisco WAN Modeling Tools User Guide, 15.3.00
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Obtaining Documentation

The CWM Modeling Tools and Automated Bulk Provisioning user guides are also available on their software CDs and ordered separately.
Refer to the current CWM release notes for information on all the switch products that CWM supports and that are certified in this release.
You can access all CWM documentation at this website:
http://www.cisco.com/en/US/products/sw/netmgtsw/ps2340/tsd_products_support_series_home.html
These documents support this release of the Cisco Multiservice Switch products and are shipped with the product:
You can access the MGX switch documentation at this website. See MGX Switches:
Preface
Release Notes for CWM Automated Bulk Provisioning, Release 15.3.00
Cisco WAN Manager Automated Bulk Provisioning Guide, Release 15.3.00
Regulatory Compliance and Safety Information for Cisco Multiservice Switch Products (MGX, BPX,
and SES)—Familiarizes you with safety precautions for your product.
A Guide to Cisco Multiservice Switch Documentation—Describes how to find the manuals and
release notes that support multiservice switches and network management products. These documents are available only online. This guide ships with the product.
Installation Warning Card—Contains precautions that you should take before you insert a card into
a slot. This Warning Card ships with the product.
http://www.cisco.com/en/US/products/hw/switches/tsd_products_support_category_home.html
Refer to these MGX technical manuals as appropriate:
For planning information if your network contains MGX and SES products—Cisco PNNI Network
Planning Guide for MGX and SES Products
For information about installing cards and cables in the MGX chassis:
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830 Hardware Installation Guide, Releases 2 Through 5 for installing cards and cables in these chassis.
Cisco MGX 8xxx Edge Concentrator Installation and Configuration Guide for installing cards and cables in the Cisco MGX 8230, Cisco MGX 8250, or Cisco MGX 8850 (PXM1) chassis.
For configuring your MGX switch and processor cards:
Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, and Cisco MGX 8830 Configuration Guide, Release 5 for these chassis.
Cisco MGX 8xxx Edge Concentrator Installation and Configuration Guide for the Cisco MGX 8230, Cisco MGX 8250, or Cisco MGX 8850 (PXM1) chassis.
You can also use Cisco.com to search for any product and topic by entering a word or phrase in the Search window. For example, you can search for “configuring MGX 8850” or “PXMIE.” By using the Advanced Search option, you can search the entire Cisco.com or Technical Support & Documentation.
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.
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Preface

Cisco.com

You can access the most current Cisco documentation at this URL:
http://www.cisco.com/univercd/home/home.htm
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

Documentation DVD

Cisco documentation and additional literature are available in a Documentation DVD package, which may have shipped with your product. The Documentation DVD is updated regularly and may be more current than printed documentation. The Documentation DVD package is available as a single unit.
Registered Cisco.com users (Cisco direct customers) can order a Cisco Documentation DVD (product number DOC-DOCDVD=) from the Ordering tool or Cisco Marketplace.

Documentation Feedback

Cisco Ordering tool:
http://www.cisco.com/en/US/partner/ordering/
Cisco Marketplace:
http://www.cisco.com/go/marketplace/

Ordering Documentation

You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from
the Ordering tool:
http://www.cisco.com/en/US/partner/ordering/
Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in North America, by calling 1 800 553-NETS (6387).
Documentation Feedback
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You can send comments about technical documentation to bug-doc@cisco.com.
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Cisco Product Security Overview

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.
Preface
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
Nonemergencies— psirt@cisco.com
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 that has the most recent creation date in this public key server list:
xii
http://pgp.mit.edu:11371/pks/lookup?search=psirt%40cisco.com&op=index&exact=on
In an emergency, you can also reach PSIRT by telephone:
1 877 228-7302
1 408 525-6532
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Preface

Obtaining Technical Assistance

For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, Cisco Technical Support provides 24-hour-a-day, award-winning technical assistance. The Cisco Technical Support Website on Cisco.com features extensive online support resources. In addition, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not hold a valid Cisco service contract, contact your reseller.

Cisco Technical Support Website

The Cisco Technical Support 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, 365 days a year, at this URL:
http://www.cisco.com/techsupport
Access to all tools on the Cisco Technical Support 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
Obtaining Technical Assistance
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 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 TAC 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 TAC 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:
OL-10426-01, Rev. A0
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
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Obtaining Additional Publications and Information

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
Preface
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, 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:
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http://www.cisco.com/go/iqmagazine
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
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Preface
Obtaining Additional Publications and Information
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
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Overview of the WAN Modeling Tools
This chapter provides an overview of the applications that make up the Cisco WAN Modeling Tools, and of the Cisco products they support.

Cisco WAN Modeling Tools Overview

Cisco WAN Modeling Tools includes the following tools:
The Network Modeling Tool (NMT)
The Configuration Extraction Tool (CET)
The Third-Party Interface (TPI)
The Spread Sheet Interface (SSI)
The NMT is the primary application of the Cisco WAN Modeling Tools. NMT verifies the provisioning and predicts the routing behavior of the network. NMT supports the following Cisco MSSBU ATM platforms:
CHAPTER
1
MGX series
BPX series
IGX series
For each major switch software release, NMT verifies the physical and logical provisioning of the front and back cards that support the specified topology. NMT also verifies connection routing and rerouting capabilities of each supported switch in the network.
The CET, SSI, and TPI tools enable the exchange of information between the NMT and other applications. These tools provide interfaces to CWM, Excel, and WANDL.
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Functionality of the NMT

Figure 1-1 shows the relationship between the applications that make up the Cisco WAN Modeling
Tools.
Figure 1-1 Relationship between the Cisco WAN Modeling Tools
CWM
CND
NMT
netowork
topology
data
Chapter 1 Overview of the WAN Modeling Tools
EXCEL
NMT
WANDL
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Functionality of the NMT
The NMT is a menu driven application that enables you to model the behavior of both simple and complex networks. The program processes information provided by you and returns a proposed configuration. This configuration can then be modified and reprocessed to add redundant links, support additional sites, and so forth. You can also perform failure analysis of the network model by failing selected links and then evaluating the rerouting capability of the remaining links. The NMT allows you to interface to WANDL and other systems to further optimize the design.
Only a few fields need to be completed in order for the NMT to generate a configuration. To create the best configuration possible,. you should have extensive knowledge of computer networks, including ATM and Frame Relay networks. In addition, entering precise values for optional fields will help the NMT provide you with a precise parts list that you can use to order Cisco products.
Once the NMT processes the data, it provides configuration information in the following form:
Updated tables—Modifies your configuration tables as necessary to create a working configuration.
Reports—Provides a series of reports that describe links, nodes, part numbers, costs, and so on.
Graphical display—Displays your network design graphically with node icons and maps.
Import/Export—Displays data imported/exported to other systems.
The NMT always selects the newest available parts for a function, based on the software release you specify. You can explicitly request older cards from the input tables. Some obsolete parts are not supported.
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Chapter 1 Overview of the WAN Modeling Tools

Cisco Products Supported by the NMT

New functionality is added in each release of the NMT to accurately reflect the current capabilities of the following Cisco equipment:
MGX 8850, MGX 8830, and MGX 8950 switches—Enables a wide range of user services to be
supported by the BPX service node. Interfaces supported by the NMT include the following:
Frame Relay
ATM User-Network Interface (UNI)
Circuit emulation
n x T1/E1 inverse multiplexing for ATM (IMATM AUSM-8) UNI
3T3 interface using the SRM-3T3 module
MGX 8220, MGX 8230, and MGX 8250 edge concentrators—MGX Edge concentrators enable a
wide range of user services to be supported by the BPX service node. Interfaces supported by the NMT include the following:
Frame Relay
Cisco Products Supported by the NMT
ATM User-to-Network Interface (UNI)
Circuit emulation
n x T1/E1 inverse multiplexing for ATM (IMATM AUSM-8) UNI
3T3 interface using the SRM-3T3 module
BPX switch—A standards based high-capacity (9.6 Gb) broadband ATM switch that provides
backbone ATM switching and delivers a wide range of user services. Fully integrated with the IPX and IGX switches, the BPX switch provides broadband ATM services when ASI and BXM cards are used. It also provides a variety of narrowband services; these services are provided by tiered network configurations that use IPX switches and MGX 8220 feeders.
The BPX switch supports the high density Broadband Switch Module (BXM) cards that provide standard interfaces for connecting to cell-based equipment by way of the ATM User-Network Interface (UNI).
BXM DS3/E3 supports E3/DS3 native ATM access and trunk ports.
BXM 155 supports OC-3/STM-1 native ATM access and trunk ports.
BXM 622 supports OC-12/STM-4 native ATM access and trunk ports.
BXM cards also support ATM Frame Relay networks and services and enables configuration of permanent virtual circuits (PVCs) or switched virtual circuits (SVCs) for the following defined service classes:
Constant bit rate (CBR)
Variable bit rate (VBR)
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Unspecified bit rate (UBR)
Available bit rate (ABR)
SES PNNI Controller—Attaches to a BPX switch to provide Private Network-to-Network Interface
(PNNI) signaling and routing for the establishment of ATM switched virtual circuits (SVCs) and soft permanent virtual circuits (SPVCs) over a BPX 8600 wide area network (WAN). Features supported by the NMT include PNNI Routing, resource partitioning, and shelf provisioning.
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Basic Usage/Charter Functionality

IGX switch—A multi-service ATM networking switch that provides interfaces to support legacy and
emerging broadband applications. It supports ATM technology over subrate, narrowband E1 and T1, and broadband E3 and T3 trunks. The IGX switch is used as the basis for a leased-line campus, metropolitan area network (MAN) and WAN network, as an intelligent access device to high speed-public digital services such as ATM, in a hybrid application using both, and as a WAN service switch.
Generic Node -- The NMT allows you to create your own node type for an ATM switch or feeder.
Use the node table to provide the high level specifications for the WAN product.
Obsolete Equipment -- The NMT models obsolete equipment that users may encounter in CWM
extracts, and need to model for upgrade considerations. The following obsolete platforms are modeled: IPX switch, 3810 feeder, FastPad feeder, Port Concentrator Shelf Feeder
Basic Usage/Charter Functionality
The NMT models the WAN network using a classic node, link, and demand model. The nodes are the sites in the site table, which are provisioned as Cisco MSSBU WAN switches. The links are the inter switch trunks in the link table. The connections are specified in the voice, data, and bursty table.
The model provisions the network using the latest Cisco equipment, unless otherwise specified. The model will verify that the network will route all connections, or will report on what resources have been exceeded.
Chapter 1 Overview of the WAN Modeling Tools
The NMT tool predicts the behavior of a WAN network that uses Cisco WAN switches (MGX, BPX and IGX product series) as follows:
1. the user specifies the site locations and switch types, the links, and the connections in the network.
2. the NMT uses the AutoRoute and PNNI routing algorithms identical to those in the products.
3. based on the Connection Admission Control (CAC) parameters, the NMT verifies that the links and
connections can be provisioned, and that the connections can be routed.
4. the WAN network is modeled at the chassis, front card, and back card granularity level.
Note All connections used by the NMT are ATM connections, with the exception of some legacy IGX voice
and data services.
Keep the following in mind when you use the NMT:
The NMT provides the primary reason any connections cannot be provisioned or routed, based on
the CAC rules.
The NMT does not do discrete simulation, and no real time statistics are involved in the modeling.
The NMT address the following real time issues only:
delay estimate
requirements specified in the CAC.
The NMT verifies the connections routed in the base state
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The NMT verifies which connections will re-route under any network failure scenario.
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The NMT extracts the network topology and connection parameters from Cisco WAN Manager.
The NMT handles changes in the CWM DB schema, so these changes are invisible to the user. CWM coded values are translated to more usable strings, and tables are merged so in NMT, there is 1 table per network element.
The NMT translates topology data to and from MS Excel data. The NMT tables are translated to
DBASE3 format and a MS Excel macro is provide for creating a file of spreadsheets for each table.
NMT translates the topology data to and from the WANDL format for use by their NCAPS tool.
PNNI CAC parameters are not as granular as they are in the product. For example, some parameters
are network specific.
A 10 character node naming limitation is imposed. CWM provides translation for node naming.

Gaps

The following features are not supported by the NMT:
XPVCs
Voice traffic channel mapping entering the network for VISM/VXSM cards
Gaps
IP traffic entering the network for RPM cards
LVC resource support for RPM cards
Port Partitioning by COS
Priority bumping in AutoRoute
VXSM card and connections terminated on that card
PPP types of traffic on MPSM-16T1E1 cards
MFR links and connections on MPSM-T3E3-155 cards
Cisco MGX 8880 node (not supported by CWM)
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Data Translation Tools

Data Translation Tools
The NMT Data Translation Tools use data exchanged between the NMT and other network design software aides to create a complex network model. These tools allow the NMT to interface with other Cisco products as well as third-party products. Table 1 - 1 describes the data translation tools.
Table 1-1 Data Translation Tools
NMT WAN Modeling Tool Description
Configuration Extraction Tool (CET) Reads the database of a Cisco Wan Manager
Third Party Interface (TPI) conversion plug-in
SpreadSheet Interface (SSI) conversion plug-in
Cisco Network Designer (CND) import tool Loads an NMT into the CND as a project.
Chapter 1 Overview of the WAN Modeling Tools
(CWM) system, and creates an NMT configuration file with all critical topology and connection information. For further description, see Chapter 10, “Configuration Extraction Tool.”
Translates NMT Data into WANDL format. WANDL is a design product that helps you optimize generic networks. TPI also provides translation from WANDL-to-NMT configuration files. for more information, see Chapter 11, “Third Party Interface.”
Translates the NMT configuration file tables into standard DBF and XLS formatted files, for use in other systems. It also supports an EXCEL XLS interface for entering, modifying, and analyzing integer data. Several NMT reports are also available in DBF and XLS. For more information, see Chapter 12, “SpreadSheet Interface.”
The CND provides low level local configuration of each site on a network, and generates graphic displays and a Bill of Materials (BOM).
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Installing the Cisco WAN Modeling Tools
This chapter provides instructions for installing the following Cisco WAN Modeling Tools:
the Network Modeling Tool (NMT)
the Configuration Extraction Tool (CET)
the Third-Party Interface (TPI) Conversion Plug-in
the SpreadSheet Interface (SSI) Conversion Plug-in
This chapter contains the following sections:
System Requirements
Installing the NMT
Upgrading the NMT Software
Starting the NMT
Removing NMT
Installing a Cisco WAN Modeling Tools Sub-application
2
Removing Sub-applications
Troubleshooting NMT Installation
Note Check the Cisco WAN Modeling Tools Release Notes for changes in the installation process.

System Requirements

NMT, CET, TPI, and SSI run on Solaris 2.6 or later. NMT runs under many configurations, including SPARC IPX, LX, 5, 10, 20, and Ultra. Hardware requirements depend on the size of the model you are creating. A typical setup includes:
Minimum 16 MB of memory
CD ROM
535-MB SCSI disk or larger
The PC version of NMT runs on Windows 98, Windows 99,Windows 2000, and Windows NT.
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Installing the NMT

Installing the NMT
This section explains how to install the Cisco WAN Modeling Tools software and link it to your project directories. This procedure also installs any subapplications (CET, TPI, and SSI) that came with your copy of the NMT software. If you want to install only the subapplications, refer to the “Installing a Cisco
WAN Modeling Tools Sub-application” section later in this chapter.
The NMT Product provides both a UNIX and PC version of the NMT tool. To install the NMT on a UNIX platform, see the “Installing the NMT on a UNIX Platform” section that follows. To install the NMT on a PC platform, see the “Installing the NMT on a PC Platform” section later in this chapter. The differences between UNIX and PC version of the NMT are as follows:
The PC version of NMT uses F5 for choice list, UNIX version uses HELP or F12.
The PC version of NMT has no support to launch the MAP command.
Note CNF files from either platform can be read by the other. For example, CNF files from a PC version of
NMT can be read by a UNIX version of NMT, and vice-versa.
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Installing the NMT on a UNIX Platform

To run NMT on Unix platforms, you need to install the software first. Install the software once for each release platform. Once the software is installed, you need to create a working directory from which you will launch NMT.
Load the NMT Software
Use the following procedure to create a dedicated subdirectory that will store the NMT software. The installation process creates a subdirectory name and a release number. For example:
/usr/users/NMT/151
Note Multiple NMT feature releases can co-exist on the UNIX platform. If a maintenance upgrade is done,
the upgraded NMT release replaces the previous release.
To create the software installation directory, perform the following steps.
Step 1 Log into the account that will own the NMT software.
Step 2 Create a dedicated directory where the NMT releases are stored.
Step 3 Verify that you are in the correct directory by entering the following command:
pwd
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The path with the release number is the same path you will use when you create a working directory.
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Step 4 If you are installing from a cd on a Solaris platform, perform the following steps:
a. Enter the following command:
volcheck
b. Enter the following command:
Note cp /cdrom/nmt151/install/151.tar.Z
If this step fails because the file is not found, substitute nmt151#1 for nmt151.
c. Enter the following command:
uncompress 151.tar
d. Enter the following command:
tar xf 151.tar
This creates the 151 directory containing all the software.
Creating a Working Directory
Installing the NMT
Use the following procedure to link the NMT software to working or project directories.
Note You need to perform this procedure only once. Once you have created a working directory, you can
launch the NMT from the working directory.
Step 1 Log into the account that will own the working NMT directory.
Note The account that owns the working directory can be the same account that owns the software directory,
or it can be a different account.
Step 2 Create the working directory name:
mkdir project_name
Step 3 Move to the subdirectory you just created:
cd project_name
Step 4 Make sure you are running in c shell. If you are not, enter the following command:
csh
Step 5 Link the project directory to the NMT release:
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a. Set the environment variable NMTHOME to the path of the software directory and release. For
example:
setenv NMTHOME /usr/users/NMT/151
b. Execute the following command:
$NMTHOME/nmtlink
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The NMT files are linked or copied to the project_name directory. This links NMT and all the plug-ins (including TPI, SSI, and CET). To link in NMT without the plug-ins, enter the following command:
$NMTHOME/nmtlink -nmt
Note Cisco recommends that you do not link NMT without the plug-ins.
Note NMTcreates a directory under your home path called tmp. If you want NMT to use a
different directory than tmp for scratch work, you can specify it with the full path by using the environment variable NMTTMP.)
Note Cisco recommends that you periodically remove old files from the tmp/scratch work
directory. NMT must not be running when you remove files from this directory.
Figure 2-1 depicts the relationship between the NMT software, user, and project accounts.
Figure 2-1 Example of suggested NMT Directory Structure
usr/users
NMT
tmp
User_1
Project
Project 2
User_2
link
S6034
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Installing the NMT on a PC Platform

To install NMT on the PC, follow these steps:
Step 1 Run the provided nmt installing exe file, which is a self extracting ZIP file. The file is called
‘nmt_inst.exe’ and is in the PC directory. You can either run it directly from your CD drive on the PC, or transfer it from your UNIX installation to your PC and then run it.
Step 2 The zip file will unzip in c:\nmt by default. It is recommend you keep this as the NMT installation
directory. If you accept this selection, move to step 3. If you wish to change the installation directory, use one of the procedures that follow.
To change the installation directory on a Windows 2000 system, follow these steps:
a. Enter the cd command to get to the Advanced directory, as shown in the following example:
My Computers/Control Panel/System/Advanced.
b. Click “Environment Variables.”
c. Click “New” and add the environment variable with the name NMTHOME, and set the value to the
directory you specified when installing the compressed file.
Installing the NMT
To change the installation directory on earlier windows systems:
a. Add the lines in the file autoexec.add to the end of your autoexec.bat file. The autoexec.add file is
in the c:\nmt default directory, and the autoexec.bat is found in the c: main directory.
b. Change the drive and directory of NMTHOME to the path you entered for the unzip command.
c. Reboot your machine before running NMT.
Step 3 Install the shortcut.
a. Open Explorer, go to \nmt\install and then to the sub directory of the operating system on your PC.
b. Drag and drop the Cisco WAN Modeling Tool shortcut to the background windows screen.
To create a short cut from scratch, follow these steps:
a. Use Explorer to drag and drop the file c:\nmt\install\nmt.exe to the background.
b. Right mouse click on the icon for properties.
c. Set start in to the recommended C:\nmt†ata, which will be the default directory for storying your
NMT files.
If you want to store your NMT data elsewhere, you can reset this. Select change icon, and then browse. Select the file c:\nmt•in\nmt_icon.exe and pick the icon on the left.
Step 4 Click the Cisco WAN Modeling Tool icon to start NMT. Alternatively, you can start NMT by running
c:\nmt\nmt.exe.
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Upgrading the NMT Software

Upgrading the NMT Software
NMT feature releases have unique sub directory names. The installation of a new feature release requires the creation or alteration of the working directories. Maintenance releases, however, use the same software directory you created in the previous section. The working directories automatically use the upgrade through UNIX links to the software.
Use the following procedure to perform a maintenance upgrade of NMT software on a UNIX system.
Step 1 Enter the cd <directory> command to log onto the same account that was used to initially install the
software, as shown in the following example:
cd /usr/users/NMT
Step 2 Copy the compressed tar file 151.0.tar.Z to the same directory in which the release was initially installed.
Step 3 Enter the uncompress <filename> command to uncompress the file, as shown in the following example.
uncompress 151.0.tar
Chapter 2 Installing the Cisco WAN Modeling Tools
Step 4 Enter the tar xf <filename> UNIX command to untar the file as shown in the following example:
tar xf 151.0.tar

Starting the NMT

Use the following steps to run the NMT and any NMT UNIX commands.
Note Always enter the commands in the NMT working directory.
Step 1 If you are on a Cisco StrataView platform, while logged in as Cisco Wan Manager (CWM) and in the
svplus directory, enter the xhost + command to grant xwindows permission. (This can be done from the console window or an xterm window.)
xhost +
Note You may want to add the xhost + command to the svplus.login file.
Step 2 Enter your user name and enter your password to log in to your user home directory. For example,
/usr/users/my_name.
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Step 3 Enter the cd command to move to one of your project directories:
cd
project_name
Step 4 Enter the nmt command to start NMT:
nmt
Note Use the nmt -d command to start the program if you need to modify system parameters to ranges
outside the scope of the current product line. This option adds two additional selections to the Execute menu: Internal Set for Switches/Links and Network Internal Setting.

Removing NMT

The nmtrel command removes all NMT subcomponents from the program.
Removing NMT

Installing a Cisco WAN Modeling Tools Sub-application

This section provides instructions for installing the following Cisco WAN Modeling Tools sub-applications:
the Configuration Extraction Tool (CET)
the Third Party Interface (TPI)
the SpreadSheet Interface (SSI)
To install the sub-applications on a UNIX platform, see the “Installing the Cisco WAN Modeling Tools
sub-applications on a UNIX Platform” section that follows. To install the SSI on a PC platform, see the
Installing the SSI on a PC Platform” section, later in this chapter.
Note This procedure is necessary only if you used the -NMT option with NMTlink.
The procedures in the sections that follow are for accessing, loading, and linking the applications to project directories.
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Installing a Cisco WAN Modeling Tools Sub-application

Installing the Cisco WAN Modeling Tools sub-applications on a UNIX Platform

Use the following procedure to install a Cisco WAN Modeling Tools sub-application on a UNIX Platform.
Step 1 Go to a working directory where you have run nmtlink.
Step 2 Set up a UNIX environment variable for CET, TPI, or SSI.
setenv [nmt_path] nmt_path is the path to the version of the NMT software you are using.
Step 3 Link the project directory to the NMT release:
For CET: $CETHOME/cetlink For TPI: For SSI:
$TPIHOME/tpilink $SSIHOME/ssilink

Installing the SSI on a PC Platform

Install the Spread Sheet Interface on the PC regardless of whether you use the PC or UNIX version of NMT.
To install SSI on a PC, complete the following steps:
Step 1 Transfer the following files to your PC:
SSI—NMT Excel macro file. This macro converts DBF formatted NMT tables into an Excel
spreadsheet, and vice-versa.
SSIDOSKT.TAR—Archive file of SSI DOS utilities tar.exe; DOS version of UNIX tar command.
These optional utilities support the transferring and uncompacting of data.
Note Use binary mode when transferring SSI and SSIDOSKT.TAR to your PC.
Step 2 Copy the file SSI to the XLStart subdirectory of your Excel 5.0 (or higher) installation. It can be installed
in any Windows environment.
Note In most PC Environments, Excel will be in the directory c:\program files\Microsoft
Office\Office\XLstart.
Step 3 Copy the file to the xlstart subdirectory of the Excel product.
This Macro gives you the NMT_Load, NMT_Unload and NMT_PrettySheet commands.
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Note You do not need to do Step 4 and Step 5 if you are not going to use the tar file for your NMT data.
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