GENI Desktop Tutorial (Summer Camp 2015 UConn)

This tutorial consists of three parts:

• Basic GENI Desktop Operations
• Brief Introduction to OpenFlow
• Flow Installation and Monitoring in GENI Desktop

Important URLs

To use the GENI Desktop, go to	​https://genidesktop.netlab.uky.edu
A general tutorial for GENI Desktop	​http://groups.geni.net/geni/wiki/GENIExperimenter/Tutorials/GENIDesktop
This page is located at	​http://groups.geni.net/geni/wiki/GeniDesktop/Summer_Camp_2015

I. Basic GENI Desktop Operations

• Part I: Setup
  • Follow the instructions of the general GENI Desktop tutorial to create a topology with three Xen nodes as shown below.

• Part II: Excute
  • Step 1: Copy a file to the selected nodes.
    • Download these two files ( attachment:runs​, attachment:runc​ ) to a local directory.
    • Click "Upload File"
    • Highlight two nodes (A and B) *
  • Step 2: Run a command on the selected nodes.
    • Click on "Command"
    • Highlight all three nodes (A, B, and C)
    • Click on "Set Selection"
    • Type "sudo apt-get install iperf" in the text box.
    • Click on "Run Command"
  • Step 3: Monitor the traffic of the selected interface.
  • Step 4: Login by ssh to the selected nodes.
• Part III: Finish
  • Teardown experiment

II. Introduction to OpenFlow

A brief introduction to OpenFlow can be found at [ ]

III. Flow Installation and Monitoring

• Part I: Setup
  • Step 1: Create two slices, one for the controller and one for an experiment using OVS nodes.
    • For the controller slice, drag one "AAG Controller" node to the canvas. Check "Public IP address" box for the controller node.
    • For the experiment slice with OVS nodes, create a topology consisting of of three OVS nodes and two Xen nodes as shown below.
  • Step 2: Figure out the public IP address of the controller after the controller slice is created.
  • Step 3: Run an initialization script " " on all OVS nodes in the experiment.

• Part II: Execute
  • Step 1: Install, list, and delete flows on the experiment
    • Click on "Flow Install". Fill in the IP address of the controller.
    • Select a path in the topology and highlight it.
    • Fill in the form to set the flow.
    • You can also try list and delete flows.
  • Step 2: Monitor per-flow performance
    • Click on "Flow Monitor".
    • Choose a flow to monitor at a selected node.
    • Send traffic (ping, iperf, etc) from end host A to end host B in the experiment.

• Part III: Finish
  • Teardown experiment