The Practical OPNET User Guide for Computer Network Simulation

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ISBN 9781439812051
Cat# K10606



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  • Provides detailed descriptions of the most commonly used OPNET software features
  • Illustrates how to develop and configure models for every layer of the TCP/IP reference model
  • Contains extensive examples that show how to set up and configure many nontrivial features of OPNET software
  • Presents detailed answers to commonly asked "how-to" questions
  • Includes laboratory assignments that cover all layers of the TCP/IP reference model and enable readers to experiment with various software features described in the text


One of the first books to provide a comprehensive description of OPNET® IT Guru and Modeler software, The Practical OPNET® User Guide for Computer Network Simulation explains how to use this software for simulating and modeling computer networks. The included laboratory projects help readers learn different aspects of the software in a hands-on way.

Quickly Locate Instructions for Performing a Task
The book begins with a systematic introduction to the basic features of OPNET, which are necessary for performing any network simulation. The remainder of the text describes how to work with various protocol layers using a top-down approach. Every chapter explains the relevant OPNET features and includes step-by-step instructions on how to use the features during a network simulation.

Gain a Better Understanding of the "Whats" and "Whys" of the Simulations
Each laboratory project in the back of the book presents a complete simulation and reflects the same progression of topics found in the main text. The projects describe the overall goals of the experiment, discuss the general network topology, and give a high-level description of the system configuration required to complete the simulation.

Discover the Complex Functionality Available in OPNET
By providing an in-depth look at the rich features of OPNET software, this guide is an invaluable reference for IT professionals and researchers who need to create simulation models. The book also helps newcomers understand OPNET by organizing the material in a logical manner that corresponds to the protocol layers in a network.

Table of Contents

Getting Started with OPNET
OPNET IT Guru and Modeler
Managing OPNET Preferences
Viewing Documentation
Working with Files and Model Directories
Projects and Scenarios
Working with Projects
Working with Scenarios

Creating Network Topology
Object Palette Tree Utility for Creating Network Topology
Working with the Object Palette Tree
Creating Network Topology
The Rapid Configuration Tool
Configuring Link Objects
Failing and Recovering Network Elements
Creating Topology Annotation
Removing Node Clutter

Configuring Network Topology
Object Attributes
The Edit Attributes Dialog Box
Configuring Object Properties
Promoting Object Attributes

Configuring and Running a Simulation
Simulation Statistics in OPNET
Selecting Simulation Statistics
Configuring and Running a Simulation
Results Browser
Viewing Simulation Results with the Results Browser
Manipulating Analysis Panels
Advanced Analysis Panel Properties

Standard Applications
Modeling Traffic Sources in OPNET
Types of Traffic Source Models in OPNET
Including Applications in a Simulation Model
Description of Standard Applications
Using Symbolic Node Names
Application Statistics

Advanced Traffic Generation Features
Introduction to Custom Applications
Configuring Tasks and Phases for Custom Applications
Defining Custom Applications in OPNET
Example of Configuring Custom Applications in OPNET
Explicit Packet Generation Sources
Application Demands and Traffic Flows
Custom Application Statistics
Statistics for Application and Traffic Demands
Statistics for Explicit Packet Generation Sources and Baseline Loads

Specifying User Profiles and Deploying Applications
User Profiles
Specifying User Profiles
Examples of Configuring User Profiles
Using the Application Deployment Wizard for Deploying User Profiles
Deploying User Profiles without Application Deployment Wizard
Common Mistakes in Profile Configuration and Application Deployment

Transport Layer: TCP and UDP Protocols
Supported TCP Features
TCP Configuration Attributes
Common Transport Layer Statistics

Network Layer: Introduction to the IP Protocol
Basic IP Configuration Attributes
Managing IP Addresses
Configuring Other IP Features
Internet Control Message Protocol
Common IP Statistics, Tables, and Reports

Advanced IP Protocol Features
Network Address Translation (NAT)
IP Multicast
Quality of Service

Network Layer: Routing
Routing with RIP
Routing with OSPF
Common Routing Statistics
Viewing Routing Tables

Data Link and Physical Layers
Deploying and Configuring Simulation Models with Data Link Layer Technologies
Link Model Attributes and Statistics
Token Ring
Wireless LANs
Specifying Node Mobility
Using the Wireless Deployment Wizard

Laboratory Assignments


Author Bio(s)

Dr. Adarshpal S. Sethi is a professor in the Department of Computer and Information Sciences at the University of Delaware, where he currently teaches a course on the simulation of computer networks that is based entirely on the use of OPNET for network simulation. Dr. Sethi is a member of the editorial boards of the IEEE Transactions on Network and Service Management, International Journal of Network Management, and Electronic Commerce Research Journal. His research interests include architectures and protocols for network management, fault management, management of wireless networks, and network simulation and modeling.

Dr. Vasil Y. Hnatyshin is an associate professor in the Department of Computer Science at Rowan University, where he has successfully integrated OPNET software into courses such as data communications and computer networks and TCP/IP and Internet technologies. His research interests include QoS in the Internet, TCP/IP networks, location-aided routing in mobile ad hoc networks, network security, wireless communication, and network simulation and modeling.