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Simple OpenFlow Tutorial with OVS Using GENI Portal

Experiment Description

In this tutorial we are going to use a simple topology using OVS as an OpenFlow switch connected to three hosts. OVS is a software switch running on a compute resource. The other three hosts can only communicate through the OVS switch. Although the controller for the switch can run anywhere in the internet, we are going to run it on the same host as the OVS switch to minimize the required resources. We are going to use this setup to write simple controllers and experiment with the capabilities of OpenFlow. For this tutorial we are going to use the PoX controller, this is just an example of many controllers. The OVS switch that we use runs in userspace which although not optimized for performance, it is enough for getting acquainted with OpenFlow.

Tutorial Instructions

  • Part I: Design/Setup
    • Step 1: Establish Management Environment: Setup your GENI account and join a GENI Project
    • Step 2: Obtain Resources: Create a slice and reserve resources
  • Part II: Execute
    • Configure and Initialize Services: Configure your OpenFlow switch
    • Execute Experiment: Login to nodes and execute a simple layer 2 experiment

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