Network Topology Transformation for Fault Tolerance in SpaceWire Onboard Networks

The paper presents a network transformation algorithm for fault tolerance in SpaceWire onboard networks which is implemented in SANDS computer-aided design system. We give general notions on fault tolerance for onboard networks, introduce our algorithm for network transformation and give several examples of running the algorithm on different topologies

Deadlock-Free Routing in SpaceWire Onboard Network

In this article we consider the deadlock-free routing problem for onboard SpaceWire network with redundant devices. We work with static routing, it means that, routing tables are calculated and uploaded into the switches before launch the SpaceWire network. We solve deadlock-free problem with Up/Down routing approach, which is based on acyclic directed network graph. To build acyclic directed graph we modify the original algorithm of DFS based creating spanning tree. To find the routes of data transmission in the network we convert created directed graph to channel dependency graph. Also in this article we provide an example and explanation of our algorithms for deadlock-free routing in SpaceWire network

Design and Simulation of Onboard SpaceWire Networks

The paper describes SpaceWire Automated Network Design and Simulation (SANDS) - the new CAD system for SpaceWire networks. SANDS system supports the full on-board network design and simulation flow, which begins from the network topology automated generation and finishes with getting the network structure, configuration and parameters setting, simulation results and statistics. The paper also provides use cases for SANDS application