The authors present a simple MAC-level protocol for high-speed ring networks. The protocol is fair and its maximum achievable throughput does not deteriorate with the increasing propagation length of the ring. The proposed protocol operates on the so-called 'spiral ring' topology, including the single-segment regular ring as a special case. It accommodates synchronous traffic automatically, without any bandwidth preallocation or similar special efforts, yet with an arbitrarily low jitter and without packet loss.
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