The Department of Defense (DOD) is seeking proposals for the topic "Virtualized Naval Tactical Data System Interfaces over Ethernet" as part of the SBIR 24.1 BAA. The Navy is looking for innovative solutions to replace legacy hardware used in tactical systems with software-defined solutions supported in an Infrastructure as a Service (IaaS) architecture. The goal is to develop a capability for Ethernet-based Naval Tactical Data System (NTDS) interfaces to allow hardware abstraction of Interface Processor Computer Programs (IPCPs) to virtual machines. This will address the problem of hardware obsolescence and lower installation, maintenance, training, and logistics costs. The solution should provide software drivers that can be added to tactical operating systems without requiring software changes for the legacy NTDS application to work with the new drivers. Enhanced cyber-secure features are preferred, and the solution should eliminate physical NTDS interfaces in favor of software-only, Ethernet-based communications. The project will have a Phase I feasibility analysis and modeling, followed by Phase II prototype development and testing. The final product will be a VM-based NTDS over Ethernet solution that can be extended to support all AEGIS combat system elements on surface ship combatants. The potential for dual-use with other Navy developers and commercial industries is significant. The solicitation is closed, and more information can be found on the DOD SBIR website.