Fourth Estate Network Optimization (4ENO)

The Fourth Estate Network Optimization (4ENO) initiative, managed by the Defense Information Systems Agency (DISA), seeks to enhance and streamline IT infrastructure across various Defense Agencies and Field Activities (DAFAs). This program is designed to consolidate commodity IT local area networks and service desks into a unified network known as DoDNet. The primary objective is to migrate a significant number of Non-Secure Internet Protocol Router (NIPR) users and Secure Internet Protocol Router (SIPR) users from legacy systems to DoDNet, ensuring a more secure and efficient network environment.

A key component of 4ENO involves conducting site surveys and technical assessments to identify outdated network equipment that requires replacement before migration. The program focuses on procuring, receiving, and installing modern equipment necessary for integrating existing systems into DoDNet. This process enhances cybersecurity and simplifies network administration by reducing duplicative IT systems. The initiative aligns with the National Defense Strategy by building a resilient Joint Force and defense ecosystem.

In addition to agency migrations, 4ENO is tasked with equipping DoDNet Service Centers with updated servers and IT infrastructure. These centers are crucial for connecting various DoD Agencies to the DoDNet interface, whether through VPN or onsite connections. As the number of users grows, the program must scale these service centers to handle increased workloads without compromising user experience. This involves ongoing upgrades and build-outs to maintain connectivity and performance standards.

The 4ENO initiative is structured in two phases. Phase I spans FY 2021 to FY 2025, covering the migration of an initial set of DAFAs. Phase II will commence in FY 2026, focusing on migrating additional agencies and refreshing equipment on a five-year replacement cycle. By adopting a Single Service Provider framework under DISA's leadership, the program aims to standardize enterprise services for core IT functions across the Fourth Estate, ultimately enhancing cybersecurity and operational efficiency.