Distributed Interactive Simulation

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Distributed Interactive Simulation

• Jeb Ware
• CS 555 Prof. Mukkamala
• Apr. 22, 2008

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What is DIS?

• Application-layer protocol
• IEEE standard 1278
• Real-time distributed simulations

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Why the need?
???
POW
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The Basics

• Uses UDP datagrams
• No guaranteed delivery, no in-order delivery
• Connectionless
• Broadcast (with some Unicast)
• Peer-to-peer architecture
• No bottleneck or single point of failure

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Performance issues

• No congestion control
• Segmented simulation network subnetting
• Filters

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Heterogeneous Simulations

• Other protocols HLA, TADIL
• Gateways
• Reduce network load

HLA
DIS
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Security

• DIS has none
• Simulation on isolated network
• Trust other simulators

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Questions?