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Defense Red Switch Network
The Defense Red Switch Network (DRSN), also known as the
Multilevel Secure Voice service (MSV),
is a dedicated switched telephone network
for global secure voice, video-conferencing and data communication
for the Command & Control (C2) structure of the US Armed Forces [1].
The network is maintained by the Defense Information Systems Agency (DISA)
and is approved for communication up to the level of TOP SECRET
- Sensitive Compartmented Information (SCI) [2].
DRSN is the successor to the AUTOSEVOCOM network service,
which was terminated in 2005.
Equipment connected to the DRSN, such as a voice terminal, can be used to place
secure as well as non-secure calls, for which the switching subsystem
consists of individual RED and BLACK switches. For secure calls, encryption is
provided by the network rather than by the terminal.
This means that users do not have to worry about installing key metarial or
a Crypto Ignition Key (CIK).
Prior to 2001, the DRSN carried aroun 15,000 calls per day. This increased to
25,000 calls per day in 2003, with peaks of 45,000 calls per day.
The DRSN/MSV is the core of the Global Secure Voice System (GSVS), that is
used during peacetime as well as in times of crisis and conventional war. It
provides interoperability with a range of tactical and strategic communications
networks.
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DRSN equipment on this website
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The following users have access to the DRSN:
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- National Command Authority (NCA) — i.e. POTUS and Secretary of State of the US
- Joint Chiefs of Staff
- National Military Command Center (NMCC)
- Combatant Commanders and their command centrs
- Warfighters
- Other DoD agencies
- Government departments
- NATO
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The DRSN comprises the following sub-systems:
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- Switching (with integrated RED/BLACK service)
- Transmission
- Timing and Synchronisation
- Network Management
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© Crypto Museum. Last changed: Monday, 08 April 2024 - 10:53 CET.
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