A SpaceFibre network acts like multiple SpaceWire networks running in parallel on top of the same physical network. These parallel networks are referred to as SpaceFibre Virtual Networks (VNs). Each VN consists of a set of SpaceFibre Virtual Channels (VCs), one for each SpaceFibre link used by the VN. VCs within a VN each have their own configurable Quality-of-Service (QoS) parameters, allowing a VN to have allocated bandwidth, priority, and a schedule.
The STAR-Ultra Single-Lane Router is a SpaceFibre single-lane routing switch with eight single-lane SpaceFibre ports, an internal Remote Memory Access Protocol (RMAP) configuration port, and two internal Advanced eXtensible Interface (AXI) ports connected to an eight-lane Gen 3 Peripheral Component Interconnect Express (PCIe) interface. It can be used as a standalone routing switch or as a SpaceFibre interface board with an embedded routing switch. Each single-lane SpaceFibre port can operate at a lane signalling rate of up to 6.25 Gbit/s, providing a unidirectional data rate of approximately 4.8 Gbit/s or bidirectional data rate of approximately 4.6 Gbit/s on each port. In addition to its routing capabilities, the AXI ports connected to the PCIe interface allow high-performance data transfer to and from software running on a host computer.
This paper presents the architecture of the STAR-Ultra Single-Lane Router, provides details of its hardware capabilities and software support, and provides performance results when transmitting and receiving packets from software running on a host computer.

SpaceFibre is a high-performance, high-reliability, and high-availability network technology designed for demanding applications. The WBS-VIII is the latest generation of FFT-based spectrometer being developed by STAR-Dundee for in-orbit microwave sounder applications. This paper describes the architecture of the WBS-VIII, outlines its development and expected performance, and then explains why SpaceFibre was used as the interface between the WBS-VIII and the Instrument Control Computer.