High-fidelity switch models for software-defined network emulation

Danny Yuxing Huang, Kenneth Yocum, Alex C. Snoeren

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Software defined networks (SDNs) depart from traditional network architectures by explicitly allowing third-party software access to the network's control plane. Thus, SDN protocols such as Open-Flow give network operators the ability to innovate by authoring or buying network controller software independent of the hardware. However, this split design can make planning and designing large SDNs even more challenging than traditional networks. While existing network emulators allow operators to ascertain the behavior of traditional networks when subjected to a given workload, we find that current approaches fail to account for significant vendor-specific artifacts in the SDN switch control path. We benchmark OpenFlow-enabled switches from three vendors and illustrate how differences in their implementation dramatically impact latency and throughput. We present a measurement methodology and emulator extension to reproduce these control-path performance artifacts, restoring the fidelity of emulation.

Original languageEnglish (US)
Title of host publicationHotSDN 2013 - Proceedings of the 2013 ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking
Pages43-48
Number of pages6
DOIs
StatePublished - 2013
Event2013 2nd ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking, HotSDN 2013 - Hong Kong, China
Duration: Aug 16 2013Aug 16 2013

Publication series

NameHotSDN 2013 - Proceedings of the 2013 ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking

Other

Other2013 2nd ACM SIGCOMM Workshop on Hot Topics in Software Defined Networking, HotSDN 2013
CountryChina
CityHong Kong
Period8/16/138/16/13

Keywords

  • Modeling
  • OpenFlow
  • SDN
  • Software-defined networking

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Software

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