Application Protocol
Simulation state information is encoded in formatted messages, known as protocol data units (PDUs) and exchanged between hosts using existing transport layer protocols, including multicast, though broadcast User Datagram Protocol is also supported. There are several versions of the DIS application protocol, not only including the formal standards, but also drafts submitted during the standards balloting process.
- Version 1 - Standard for Distributed Interactive Simulation - Application Protocols, Version 1.0 Draft (1992)
- Version 2 - IEEE 1278-1993
- Version 3 - Standard for Distributed Interactive Simulation - Application Protocols, Version 2.0 Third Draft (May 1993)
- Version 4 - Standard for Distributed Interactive Simulation - Application Protocols, Version 2.0 Fourth Draft (March 1994)
- Version 5 - IEEE 1278.1-1995
- Version 6 - IEEE 1278.1a-1998 (amendment to IEEE 1278.1-1995)
- Version 7 - IEEE P1278.1 (in development - completion anticipated in 2012. See External Link - DIS Product Development Group.) Version 7 is also called DIS 7. This is a major upgrade to DIS to enhance extensibility and flexibility. It provides extensive clarification and more details of requirements, and adds some higher-fidelity mission capabilities.
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