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Introduction of Simulation and OPNET

Introduction of Simulation and OPNET. I.Aseel AlTurki King Saud University. 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

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Introduction of Simulation and OPNET

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  1. Introduction of Simulation and OPNET I.AseelAlTurki King Saud University

  2. 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

  3. Ways to Study a system

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. OPNET Workflow Create network models View and analyze results Run simulation Choose statistics

  9. OPNET’s Hierarchical Modeling • Three-Tiered Hierarchical Modeling • Network • Node • Process

  10. Editors • Network Editor • Specify network topology and configure nodes and links. Choose results, run simulations and view results

  11. Editors (cont..) • Node Editor • Create models of nodes by specifying internal structure and capabilities • Create your own devices

  12. Editors (cont..) • Process Editor • Develop models of decision-making processes representing protocols, algorithms, resource management, operating systems, etc.

  13. Editors (cont..) • Link Model Editor • Path Editor • Packet Format Editor • PDF Editor • etc

  14. 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.

  15. 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))

  16. 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.

  17. Choose Statistics • Right click  quick menu • Edit attributes  Choose individual statistics  Check the statistics that you need.

  18. Simulation • Select Duration, Seed, other Attributes • Run the Simulation • View Graphs produced • Analyze

  19. What's next • OPNET Online Tutorial • Do the step-by-step online tutorials • Do some small experimental modifications to the tutorials so you can understand better. • Use the online help manual. • Search YouTube for easy tutorials such as: http://www.youtube.com/user/rodybaylor#p/u/3/9PIoVkG3L_A • Try to simulate a real world problem

  20. References • http://linux01.crystalgraphics.com/view/1b3c2d-OGNmM/Introduction_to_OPNET_Simulator_flash_ppt_presentation • http://www.powershow.com/view/26b936-ZjRiN/Introduction_to_Opnet_Modeler_flash_ppt_presentation • www.cs.lamar.edu/faculty/osborne/5328/OPNET%20Modeler.ppt • wow.eecs.berkeley.edu/ergen/docs/OPNET.ppt • www.docstoc.com/docs/77648870/Simulation

  21. Thank you

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