Software-Defined Satellite Networks (SDN): The Control Layer Powering the Multi-Orbit, Multi-Domain Future (2026 Update)

How Programmable Networking Is Reshaping Space Communications, Defense Architectures, and Global Connectivity Executive Summary Satellite communications are undergoing a structural transformation from static, hardware-defined systems into dynamic, software-orchestrated network ecosystems. At the center of this shift is Software-Defined Networking (SDN), which decouples control from infrastructure and enables centralized, programmable management across satellites, gateways, and user…

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