Macroflows and microflows: Enabling rapid network innovation through a split SDN data plane

  • Narayanan R
  • Kotha S
  • Lin G
 et al. 
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In this paper, we empirically quantify inherent limitations of merchant switching silicon, which constrain SDNs' innovation potential. To overcome these limitations, we propose a Split SDN Data Plane (SSDP) architecture – anew switch architecture which allows rapid network innovation by complementing a cost-effective, yet inflexible, front end merchant silicon switch chip with a deeply programmable co-processor subsystem. We implemented SSDP on a prototype Dell Power Connect platform with a programmable multi-core data plane subsystem. To demonstrate SSDP's potential, we developed diverse real-world cases on the prototype platform. Benchmarking results show that, while delivering on its rapid innovation promise (with significantly shorter turn-around time), a SSDP architecture also provides reasonably high switching rates on deep flow tables.

Author-supplied keywords

  • MIPS
  • Network Processor
  • OpenFlow
  • SDN
  • Software Defined Networking
  • macroflow
  • microflow

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  • Rajesh Narayanan

  • Saikrishna Kotha

  • Geng Lin

  • Aimal Khan

  • Sajjad Rizvi

  • Wajeeha Javed

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