= Intro to OpenFlow using OVS =

== Overview: ==
This is a simple OpenFlow tutorial that will guide you through the writing of simple OpenFlow controllers to showcase some of the OpenFlow capabilities. 
In this tutorial we are going to use [http://www.openswitch.org 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.
For this tutorial we are going to use the [http://www.noxrepo.org/pox/about-pox/ PoX controller], this is just an example of [wiki:OpenFlow/Controllers 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. 

[[Image(GENIExperimenter/Graphics:simple_ovs.png)]]

== Prerequisites: ==
   - What equipment/software is the experimenter expected to bring to this tutorial?
      - Include links to instruction on how to access, install, and configure the software
   - What knowledge is the experimenter expected to have/obtain before starting this tutorial?
      - Include links to any previous tutorials or pre-work that should be completed before starting this tutorial.
      - Include non-GENI prerequisites such as familiarity with SSH, unix command line, python, etc.
   - What credentials are the experimenter expected to have to do this tutorial?
      - Include links to instructions on obtaining those credentials
     

== Tools: ==
   - What tools is the experimenter going to be using?
   - References to guides for installing and using the tools
   - Give them a place where they can get some clarification if they don't know what the tool is or what it is doing

== Where to get help: ==
   - Mailing lists
   - Forums

== Resources: ==
   - Where can I get more information?
   - Troubleshooting pages or FAQs
   - GENI Glossary?

== Tutorial Instructions ==
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			<a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/DesignSetup"><img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/design.png?format=raw" width="152" height="152" alt="Design/Setup"></a>
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<ul> 
             <li><a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/DesignSetup">Part I: Design/Setup</a></li>
             <ul>
                 <li>Step 1:  Design Experiment</li>
                 <li>Step 2:  Establish Management Environment</li>
                 <li>Step 3:  Obtain Resources</li>
             </ul></ul>
               </td>
	</tr>
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			<a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/Execute"><img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/execute.png?format=raw" width="152" height="143" alt="Execute"></a>
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             <ul>
<li><a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/Execute">Part II: Execute</a></li>
             <ul> 
                 <li>Step 4:  Configure and Initialize Services </li>
                 <li>Step 5:  Execute Experiment </li>
                 <li>Step 6:  Analyze and Visualize Experiment </li>
             </ul></ul>
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			<a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/Finish"><img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/finish.png?format=raw" width="152" height="114" alt="Finish"></a>
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		<td>
             <ul>
             <li><a href="http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/OnlineTemplate/Finish">Part III: Finish</a></li>
             <ul>
                 <li>Step 7:  Teardown Experiment</li>
                 <li>Step 8:  Archive Experiment</li>
             </ul></ul>
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