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Autonet: A High-Speed, Self-Configuring Local Area Network Using Point-to-Point Links

Michael Schroeder, Andrew Birrell, Mike Burrows, Hal Murray, Roger Needham, Tom Rodeheffer, Ed Satterthwaite, and Chuck Thacker

Abstract

Autonet is a self-configuring local area network composed of switches interconnected by 100 Mbit/second, full-duplex, point-to-point links. The switches contain 12 ports that are internally connected by a full crossbar. Switches use cut-through to achieve a packet forwarding latency as low as 2 microseconds per switch. Any switch port can be cabled to any other switch port or to a host network controller. A processor in each switch monitors the network’s physical configuration. A distributed algorithm running on the switch processors computes the routes packets are to follow and fills in the packet forwarding table in each switch. This algorithm automatically recalculates the forwarding tables to incorporate repaired or new links and switches, and to bypass links and switches that have failed or been removed. Host network controllers have alternate ports to the network and fail over if the active port

stops working. With Autonet,

Details

Publication typeArticle
Published inIEEE Journal on Select Areas of Communication
URLhttp://birrell.org/andrew/papers/059-Autonet.pdf
Volume9
Number8
PublisherInstitute of Electrical and Electronics Engineers, Inc.
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