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NRL Emulation Workshop Introduction

NRL Emulation Workshop Introduction. Kenneth Flynn President, DCS. NRL Questions. Requirements and Use Cases Tools Limitations/Trouble Spots Collaboration?. Who is DCS?. Custom software development firm specializing in “MANET software”:

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NRL Emulation Workshop Introduction

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  1. NRL Emulation WorkshopIntroduction Kenneth Flynn President, DCS

  2. NRL Questions Requirements and Use Cases Tools Limitations/Trouble Spots Collaboration?

  3. Who is DCS? • Custom software development firm specializing in “MANET software”: • Measure the performance of MANETs at the application layer • Measure the performance of applications on MANETs • Develop applications that run on MANETs • We live at the MANET-aware application layer

  4. Use Cases • T-AIDR (Supporting CenGen) • 100-400 many-to-many node network • Various “surrogate” tactical applications • SA, Chat, File Transfer, Voice, Video • For our sanity (read cost), we need the same tools in: • Simulation • Emulation • Field

  5. Tools • Emulated Network Stack (EMANE) • Surrogate Tactical Applications • Attila Testbed Control Tools (DCS) • Script execution for surrogate applications • Script coordination • Real-time monitoring and troubleshooting • Minotaur Analysis (DCS) • Data reduction and analysis

  6. Trouble Spots Scripting

  7. What We Did • Given a set of “scripts”, we can reliably: • Load applications • Execute the scripts • Collect the data • Reduce the data • Analyze the results and gain insight into network performance

  8. But… Config Files! Every time I got a phone call from NJ asking for support, my family shouted:

  9. What’s Wrong? • Need to synchronize applications as well as MANET emulation environment • Mobility • Application configurations • SA • Chat • Video • Voice • Etc. • Scripts

  10. What’s Wrong? • Of course, the trouble is defining what a script actually is… • Mobility? • Application Traffic? • Configuration parameters for an application? • Commands sent to an application?

  11. What is a Script? sendMessage( time, source, destination message_text, priority); sendMessage( time, source, destination message_text, priority); sendMessage( time, source, destination message_text, priority); Chats once per second

  12. What is a Script? • We struggle with communicating about scripts • Even at powerpoint 50000’ level • For example: • “Chats once per second” • Precision in language is NOT enough • There’s just information not useful to the high level scenario designer that we need • Message content, reliability configuration, etc.

  13. Applications Have Issues • Many possible scripts are invalid, but only because of application limitations • Cannot send voice more than once per eight seconds • Arbitrary limitation of our current tool (we’re working on it  ) • Making sure this was not violated was several hours of work that had to be done for EACH SCENARIO

  14. Collaboration • A layered open standard for scripts • Layering allows • Levels of detail • Mobility (scalable) • Individual Application Configuration • Individual Application Control • Serves different users/editors at different times • Warfighters • Scenario Designers • Application Integrators • Need to define these too….

  15. Collaboration • I think this will be difficult • Number of stakeholders • Forest-tree issues: desire for different levels of detail • But with this, we can • Visualize and create scripts in different environments and tools for validation • Execute and compare in a variety of ways: • Simulation, Emulation, Field

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