Defense Information Systems Network
Encyclopedia
The Defense Information System Network (DISN) has been the United States Department of Defense
's enterprise network
for providing data, video and voice services for 40 years.
The DISN Leading Edge Services (DISN-LES) is a "Next Generation" network providing wide area Asynchronous Transfer Mode
(ATM) connectivity to worldwide subscriber sites. The network is used by subscribers and DISA's GE-51 Program Office to test systems, equipment, network monitoring
and management technologies, trouble shooting, and help desk procedures. The DISN-LES also provides technologies such as quality of service
protocols. Supported capabilities include video teleconferencing and other collaborative tools such as electronic whiteboarding and distributed war-fighting simulations. Another network focus is compatibility testing among products produced on evolving standards. Some sites have been set up to pass unclassified traffic into the encrypted
part of the network. The results of network, hardware
and software tests and exercises are shared with equipment and software suppliers and government organizations to provide real world experience with the technologies that influence network designs and system acquisition decisions throughout the industry.
, this implies components from the user access and display devices and sensors to the various levels of networking and processing, associated applications, and related transport and management services. For DISN services, end-to-end encompasses service user to service user (e.g., PC-to-PC, phone-to-phone).
United States Department of Defense
The United States Department of Defense is the U.S...
's enterprise network
Computer network
A computer network, often simply referred to as a network, is a collection of hardware components and computers interconnected by communication channels that allow sharing of resources and information....
for providing data, video and voice services for 40 years.
The DISN Leading Edge Services (DISN-LES) is a "Next Generation" network providing wide area Asynchronous Transfer Mode
Asynchronous Transfer Mode
Asynchronous Transfer Mode is a standard switching technique designed to unify telecommunication and computer networks. It uses asynchronous time-division multiplexing, and it encodes data into small, fixed-sized cells. This differs from approaches such as the Internet Protocol or Ethernet that...
(ATM) connectivity to worldwide subscriber sites. The network is used by subscribers and DISA's GE-51 Program Office to test systems, equipment, network monitoring
Network monitoring
The term network monitoring describes the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator in case of outages...
and management technologies, trouble shooting, and help desk procedures. The DISN-LES also provides technologies such as quality of service
Quality of service
The quality of service refers to several related aspects of telephony and computer networks that allow the transport of traffic with special requirements...
protocols. Supported capabilities include video teleconferencing and other collaborative tools such as electronic whiteboarding and distributed war-fighting simulations. Another network focus is compatibility testing among products produced on evolving standards. Some sites have been set up to pass unclassified traffic into the encrypted
Encryption
In cryptography, encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information...
part of the network. The results of network, hardware
Hardware
Hardware is a general term for equipment such as keys, locks, hinges, latches, handles, wire, chains, plumbing supplies, tools, utensils, cutlery and machine parts. Household hardware is typically sold in hardware stores....
and software tests and exercises are shared with equipment and software suppliers and government organizations to provide real world experience with the technologies that influence network designs and system acquisition decisions throughout the industry.
DISN End-to-End Infrastructure Responsibilities
The DISN end-to-end infrastructure is composed of three major segments:- The sustaining base (I.e. base, post, camp, or station, and Service enterprise networks). The Command, Control, Communications, Computers and Intelligence (C4I) infrastructure will interface with the long-haul network to support the deployed warfighter. The sustaining base segment is primarily the responsibility of the individual Services.
- The long-haul transport infrastructure, which includes the communication systems and services between the fixed environments and the deployed Joint Task Force (JTF) and/or Coalition Task Force (CTF) warfighter. The long-haul telecommunications infrastructure segment is primarily the responsibility of DISADisaDisa is the heroine of a Swedish legendary saga, which was documented by Olaus Magnus, in 1555. It is believed to be from the Middle Ages, but includes Old Norse themes....
.
- The deployed warfighter, mobile users, and associated Combatant Commander telecommunications infrastructures supporting the Joint Task Force (JTF) and/or Coalition Task Force (CTF). The deployed warfighter and associated Combatant Commander telecommunications infrastructure is primarily the responsibility of the individual Services.
End-to-End
As defined in CJCSI 6211.02C,Defense Information Systems Network (DISN) Policy and Responsibilities, 09 July 2008, end-to-end is defined as the fusion of requisite components to deliver a defined capability. For the GIGGlobal Information Grid
The Global Information Grid is an all-encompassing communications project of the United States Department of Defense.It is defined as a "globally interconnected, end-to-end set of information capabilities for collecting, processing, storing, disseminating, and managing information on demand to...
, this implies components from the user access and display devices and sensors to the various levels of networking and processing, associated applications, and related transport and management services. For DISN services, end-to-end encompasses service user to service user (e.g., PC-to-PC, phone-to-phone).