High Bandwidth Red/Black TSN Ethernet Switch for Space Platforms

Ethernet coupled with TCP/IP is ubiquitous in terrestrial communication and is moving into space applications due to its open nature and its ability to function over arbitrarily complex networks. In addition, use of Ethernet standards for Space Vehicle applications allows the use of commercially available test equipment and tools, reducing the cost and schedule time needed to develop flight payloads. As so much of terrestrial communications takes place using the concept of routed packets, it seems logical to use the same approaches and protocols to move packets through Space Vehicles, enabling data generated in sensors on a satellite to be directly forwarded to other satellites in orbit or various terrestrial based installations or vehicles. Non-proprietary standards-based communications built with the IEEE 802.3 and 802.1 standards allow for a rich eco-system of physical media connectivity as well as hardware and software that allows interchangeability and modular system development. However, with high levels of terrestrial and satellite data entering the space domain, the need for separating mixed criticality and multiple independent security levels of data emerges. Traditionally separate red and black switches are used to isolate different data levels with a Cross-Domain Solution (CDS) providing a bridge between networks.  This need for separate distinct devices increases Size, Weight, and Power (SWaP) which is exponential increased when providing redundancy. Furthermore, the challenges of flight in harsh environments and the mix of high and low criticality communications that come with remote, often battery-operated or solar-powered equipment, pose several issues for traditional red and black switches. A common switch or router can provide the type of connectivity required for a single aircraft, but not with the level of reliability and robustness needed to maintain mission critical functions during peak usage or operation in extreme thermal or radiation environments. This proposal seeks to develop a solution to the issues presented by space-based Red and Black Ethernet networks. Building on DornerWorks existing 1G 12-port space switch and our existing Time Sensitive Networking (TSN) 1G 10-port Switch, the result will be an 8-Port 1G/10G Layer 2 Red/Black TSN Switch that incorporates deterministic networking protocols for high bandwidth, high reliability, and high security applications in a small form factor using a radiation tolerant FPGA.  The resulting product will directly support the Space Security and Information Mobility Space Force strategic capabilities and the Space Order of Battle operational imperative.