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Implementation of gateways for high performance fiber optic networking

This paper describes the design and development of a high performance, full host gateway providing ISO/OSI network datagram service between heterogeneous, fiber optic, LANs. Development of this high performance gateway is in response to requirements of the NASA Space Station Data Management System (DMS). Scientific payloads aboard the Space Station polar orbiting platforms (POPs) will utilize the DMS as a means of communicating instrument data to and from on-board processors and the space-ground communications link. The payloads are characterized by high rate, high volume, packetized telemetry data streams. Performance is thus the dominant design consideration. Key hardware and software design issues are presented followed by the baseline design selected and built for NASA.