Upload
arwinder-paul-singh
View
25
Download
1
Embed Size (px)
Citation preview
E2MATRIXCall : +91 9056501501,9915525860Web: www.e2matrix.comEmail:mohali. [email protected]
Introduction of Simulation and OPNET
Outline Ways to study a system Advantages of simulation OPNET modeler Main features of OPNET simulator OPNET workflow OPNET’s hierarchal modeling Editors Project and scenarios The project and scenario workflow Organizing models- Object palette Choose statistics Simulation What’s next References
Ways to Study a system
Advantages of Simulation Money, money, money
Designing, building, testing,
Redesigning, rebuilding, retesting,…
The level of detail that you can get from a simulation
The only restrictions are your imagination, your programming skills, and your CPU.
OPNET Modeler OPNET stands for Optimum Network Performance.
OPNET is a computer software to simulate communication networks.
OPNET Modeler, in particular, is a research oriented package, and it is one of the leading simulators used in the industry.
OPNET Modeler (cont..)
OPNET provides graphical editors to you to edit your own devices, configure your own networks, design your own protocols, define your own packet formats, etc.
Main features of OPNET simulator
The graphical modeling approach(Graphical user interface).
The generation of statistical data is customizable.
A variety of comprehensive analysis tools.
OPNET Workflow
Create network models
Choose statistics
Run simulation
View and analyze results
OPNET’s Hierarchical Modeling Three-Tiered Hierarchical Modeling
◦ Network◦ Node◦ Process
Editors Network Editor
Specify network topology and configure nodes and links. Choose results, run simulations and view results
Editors (cont..) Node Editor
Create models of nodes by specifying internal structure and capabilities Create your own devices
Editors (cont..) Process Editor
◦ Develop models of decision-making processes representing protocols, algorithms, resource management, operating systems, etc.
Editors (cont..) Link Model Editor
Path Editor
Packet Format Editor
PDF Editor
etc
Project and Scenarios Project-and-Scenario approach to modeling network
Project: Collection of related network scenarios.
Scenario: is a single instance of the network. It represents a unique configuration of the network.
The Project/Scenarios Workflow Create project
Create Baseline scenario
Import or create topology (using Object palette-next slide)
Import or create traffic (by creating applications and profiles)
Choose results
Run simulation, view results
Duplicate scenario
Make changes
Re-run simulation
Compare results
((Iterate the last three steps until you have good results))
Organizing models- Object palettes
An object palette is a graphical dialog box that displays a group of nodes and link models.
Object palettes can be customized to contain only the nodes and links that we need.
Choose Statistics
Right click quick menu◦ Edit attributes Choose individual statistics Check the statistics that you need.
Simulation Select Duration, Seed, other Attributes
Run the Simulation
View Graphs produced
Analyze