Saturn: a terabit packet switch using dual round-robin

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Large input-output buffering with a moderate speedup has been widely considered as the most feasible solution for large-capacity switches. We propose a new terabit per second packet switch and call it the Saturn switch. It uses a simple dual round-robin arbitration scheme to schedule packets, and achieves high throughput and low statistical delay bound. It employs a bit-sliced crossbar fabric to switch packets at 10 Gb/s at inputs and outputs, and adopts a novel token-tunneling technique to arbitrate contending packets at high speed (e.g., within 10 ns), thus achieving a switch capacity of more than 1 Tb/s with existing electronic technology.

Original languageEnglish (US)
Pages (from-to)78-84
Number of pages7
JournalIEEE Communications Magazine
Issue number12
StatePublished - Dec 2000

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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