On the speedup required for combined input- and output-queued switching

@article{Prabhakar1999OnTS,
  title={On the speedup required for combined input- and output-queued switching},
  author={Balaji Prabhakar and Nick McKeown},
  journal={Automatica},
  year={1999},
  volume={35},
  pages={1909-1920}
}
Architectures based on a non-blocking fabric, such as a crosspoint switch, are attractive for use in high-speed LAN switches, ATM switches and IP routers. These fabrics, coupled with memory bandwidth limitations, dictate t ha t queues be placed at the input of the switch. But i t is well known that input-queueing can lead to low throughput, a n d does not allow the control of latency through t h e switch. This is in contrast to output-queueing, which maximizes throughput, and permits the… CONTINUE READING
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