Occupancy Sampling for Terabit CEE Switches

@article{Neeser2012OccupancySF,
  title={Occupancy Sampling for Terabit CEE Switches},
  author={Fredy D. Neeser and Nikolaos Chrysos and Rolf Clauberg and Daniel Crisan and Mitchell Gusat and Cyriel Minkenberg and Kenneth M. Valk and Claude Basso},
  journal={2012 IEEE 20th Annual Symposium on High-Performance Interconnects},
  year={2012},
  pages={64-71}
}
One consequential feature of Converged Enhanced Ethernet (CEE) is loss lessness, achieved through L2 Priority Flow Control (PFC) and Quantized Congestion Notification (QCN). We focus on QCN and its effectiveness in identifying congestive flows in input-buffered CEE switches. QCN assumes an idealized, output-queued switch, however, as future switches scale to higher port counts and link speeds, purely output-queued or shared-memory architectures lead to excessive memory bandwidth requirements… CONTINUE READING

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