Design and analysis of SpaceWire hot backup redundant network: Session networks and protocols, short paper

SpaceWire is a new bussing technology provided by European Space Agency. SpaceWire enhances the functions of error detection and error recovery [1]. Considering the application background, the reliability of SpaceWire network must be guaranteed. The paper develops a new hot back-up method for improving the reliability of SpaceWire network. The method uses the one of the reserved bits of time-code in SpaceWire to shift working mode of the SpaceWire router to realize the hot backup function and enhance the reliability of the SpaceWire network.