Defense Information Systems Network: Difference between revisions
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Providing the transmission infrastructure for a variety of [[routing|routed]] military networks, the '''Defense Information Systems Network (DISN)''' was also an incremental replacement of transmission systems built from point-to-point digital multiplexers. Its current deployment, using [[Asynchronous Transfer Mode]] (ATM), began in 1991. | Providing the transmission infrastructure for a variety of [[routing|routed]] military networks, the '''Defense Information Systems Network (DISN)''' was also an incremental replacement of transmission systems built from point-to-point digital multiplexers. Its current deployment, using [[Asynchronous Transfer Mode]] (ATM), began in 1991. | ||
As opposed to the [[transportable]] and [[mobile]] transmission systems in [[Warfighter Information Network-Tactical]], it interconnects fixed locations that connect to WIN-T and its predecessors. Military satellite communications systems complement the ATM backbone. | As opposed to the [[transportable]] and [[mobile]] transmission systems in [[Warfighter Information Network-Tactical]], it interconnects fixed locations that connect to WIN-T and its predecessors. Military satellite communications systems complement the ATM backbone. | ||
Some of the major routed networks that run over it include [[NIPRNET]], [[SIPRNET]] and [[JWICS]], at, respectively, the unclassified but government-only [[extranet]], the [[classified information|SECRET]], and [[compartmented control system|TOP SECRET/compartmented control]] levels. Circuit-switched and bridged classified networks, however, can interconnect with the ATM backbone without routing, via [[TSEC-|TSEC/]] [[KG-75]] [[FASTLANE]] ATM encryption devices, although the trend is away from these technologies and toward routing. | Some of the major routed networks that run over it include [[NIPRNET]], [[SIPRNET]] and [[JWICS]], at, respectively, the unclassified but government-only [[extranet]], the [[classified information|SECRET]], and [[compartmented control system|TOP SECRET/compartmented control]] levels. [[circuit switching|Circuit-switched]] and [[bridge (computer network)|bridged]] classified networks, however, can interconnect with the ATM backbone without routing, via [[TSEC-|TSEC/]][[KG-75]] [[FASTLANE]] ATM encryption devices, although the trend is away from these technologies and toward routing. | ||
Latest revision as of 10:20, 8 April 2024
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 Providing the transmission infrastructure for a variety of routed military networks, the Defense Information Systems Network (DISN) was also an incremental replacement of transmission systems built from point-to-point digital multiplexers. Its current deployment, using Asynchronous Transfer Mode (ATM), began in 1991. As opposed to the transportable and mobile transmission systems in Warfighter Information Network-Tactical, it interconnects fixed locations that connect to WIN-T and its predecessors. Military satellite communications systems complement the ATM backbone. Some of the major routed networks that run over it include NIPRNET, SIPRNET and JWICS, at, respectively, the unclassified but government-only extranet, the SECRET, and TOP SECRET/compartmented control levels. Circuit-switched and bridged classified networks, however, can interconnect with the ATM backbone without routing, via TSEC/KG-75 FASTLANE ATM encryption devices, although the trend is away from these technologies and toward routing. |
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