Flow caching for high entropy packet fields

  title={Flow caching for high entropy packet fields},
  author={Nick Shelly and Ethan J. Jackson and Teemu Koponen and Nick McKeown and Jarno Rajahalme},
Packet classification on general purpose CPUs remains expensive regardless of advances in classification algorithms. Unless the packet forwarding pipeline is both simple and static in function, fine-tuning the system for optimal forwarding is a time-consuming and brittle process. Network virtualization and network function virtualization value general purpose CPUs exactly for their flexibility: in such systems, a single x86 forwarding element does not implement a single, static classification… CONTINUE READING
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