text: Chapter 2
  Geographic Combatant Command J-6
  2-254. The geographic combatant command J-6 establishes policy and guidance for all communications
  assets supporting the joint force commander and develops communications system architectures and plans to
  support the geographic combatant commander’s mission. The J-6 also advises the geographic combatant
  commander of the network’s ability to support operations.
  Theater Network Operations Control Center
  2-255. The theater network operations control center is the geographic combatant command-level DODIN
  operations center. The theater network operations control center controls all theater systems and networks
  operated by forces assigned to or supporting the geographic combatant commander through technical
  channels.
  Joint Network Operations Control Center
  2-256. The commander, joint task force controls joint force systems and networks through a joint network
  operations control center. The joint network operations control center directs operations and defense of the
  joint task force portion of the theater network. The joint network operations control center collects network
  status from supporting units in the joint operations area for consolidated network situational awareness. The
  joint network operations control center provides the network status information to the joint cyberspace center
  for the theater-wide situational awareness view.
  DEPARTMENT OF DEFENSE INFORMATION NETWORK-ARMY
  2-257. The Army’s portion of the DODIN is the DODIN-A. Adhering to common joint standards ensures
  interoperability and cybersecurity compliance across the entire Army enterprise and the wider DODIN. The
  DODIN-A uses redundant transport systems to link sensors, warfighting and business applications, and
  services. The network provides access to timely, accurate information in any environment and enables
  mission partner collaboration.
  2-258. The DODIN-A connects geographically dispersed fixed station and deployed expeditionary forces
  to the global network through long-haul network transport, and supports—
  * Installation campus area networks for known, verified users. Campus networks connect
  installation-based users to DISN services through a network enterprise center.
  * Regional hub nodes that provide network transport and DISN services to support the deployed
  and training environments. The regional hub node includes a satellite transport component that
  connects deployed forces to the DODIN-A, and a gateway that provides access to DISN services
  and the wider DODIN.
  * Upper tier tactical internet to connect deployed users to a data center and DISN services,
  regardless of their location. The deployed enclave connects to the DODIN-A and DISN services
  through the regional hub node or tactical hub node.
  * Lower tier tactical internet infrastructure to support tactical formations down to the team leader.
  2-259. Commanders and their staffs leverage the DODIN-A as a warfighting platform and the foundation
  for all other Army warfighting functions and capabilities. Commanders exercise command authority over
  their portions of the network. Signal units and Soldiers install, operate, and maintain their respective portions
  of the DODIN-A so commanders and staffs can communicate with higher, subordinate, adjacent, and
  supporting elements for mission success. The DODIN-A enables leaders to exercise command and control,
  integrate warfighting functions, and synchronize their efforts. The DODIN-A also allows synchronization
  with higher, subordinate, and adjacent units using the common operational picture and commander’s intent,
  without needing direct control from higher headquarters.