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open flow switching in L2 Switch


  • Customer required Open Flow Switch framework support to their legacy Layer 2 Switch
  • The objective was to test the applicability of their proprietary SDN Controller in development


  • Provide Open Flow Switching capability to Layer 2 Switch by adding Open Flow Support
  • Provide Open Flow communication support and update Flow Table and Access Control List
  • Testing scope is limited to minimal data flow only
  • Integrate and test the developed switch with SDN Controller at customer site

Proposition and Execution:

  • Requirement elicitation by studying existing Open Flow Switch implementations
  • Initial study is done on Open Flow specification version 1.1
  • Ported Open vSwitch framework to target Layer 2 Switch

Tools/Technology Used

  • OS(Kernel) – NetBSD
  • Language – C
  • Development Environment – GCC
  • Protocol standard – Open Flow 1.1
  • Protocol Framework – Open vSwitch
  • SDN Controller – Floodlight (For testing)


  • This implementation helped the customer to integrate and test their SDN controller with OpenFlow enabled switches and were able to analyse the results