= Module D: Extend experiment script =

In this module, we will take a look at the modifications that have to be made in the experiment script to evaluate correct 
functionality of both learning switches in the extended topology. This example shows that it is relatively easy to adapt an 
existing OEDL script to an extended or slightly modified topology.

{{{

defProperty('source1', "nodea-testGIMI", "ID of a resource")
defProperty('source2', "switch1-testGIMI", "ID of a resource")
defProperty('source3', "switch2-testGIMI", "ID of a resource") #NEW

defProperty('sinkaddr12', '192.168.1.7', "Ping destination address")
defProperty('sinkaddr13', '192.168.1.8', "Ping destination address")

defProperty('sinkaddr21', '192.168.1.13', "Ping destination address") #NEW
defProperty('sinkaddr23', '192.168.1.14', "Ping destination address") #NEW
defProperty('sinkaddr24', '192.168.1.15', "Ping destination address") #NEW


defApplication('ping') do |app|
  app.description = 'Simple Definition for the ping-oml2 application'
  # Define the path to the binary executable for this application
  app.binary_path = '/usr/local/bin/ping-oml2'
  # Define the configurable parameters for this application
  # For example if target is set to foo.com and count is set to 2, then the 
  # application will be started with the command line:
  # /usr/bin/ping-oml2 -a foo.com -c 2
  app.defProperty('target', 'Address to ping', '-a', {:type => :string})
  app.defProperty('count', 'Number of times to ping', '-c', {:type => :integer})
  # Define the OML2 measurement point that this application provides.
  # Here we have only one measurement point (MP) named 'ping'. Each measurement
  # sample from this MP will be composed of a 4-tuples (addr,ttl,rtt,rtt_unit)
  app.defMeasurement('ping') do |m|
    m.defMetric('dest_addr',:string)
    m.defMetric('ttl',:uint32)
    m.defMetric('rtt',:double)
    m.defMetric('rtt_unit',:string)
  end
end

defApplication('trema') do |app|
  app.description = 'This app runs trema from command line'
  app.binary_path = '/usr/local/bin/rubydir/bin/trema run /root/learning-switch.rb'
end

defGroup('Source2', property.source2, property.source3) do |node| #MODIFIED
  node.addApplication("trema")
end

defGroup('Source1', property.source1) do |node|
  node.addApplication("ping") do |app|
    app.setProperty('target', property.sinkaddr12)
    app.setProperty('count', 30)
    #app.setProperty('interval', 1)
    app.measure('ping', :samples => 1)
  end
  node.addApplication("ping") do |app|
    app.setProperty('target', property.sinkaddr13)
    app.setProperty('count', 30)
    #app.setProperty('interval', 1)
    app.measure('ping', :samples => 1)
  end
   node.addApplication("ping") do |app| #NEW
    app.setProperty('target', property.sinkaddr21)
    app.setProperty('count', 30)
    #app.setProperty('interval', 1)
    app.measure('ping', :samples => 1)
  end
   node.addApplication("ping") do |app| #NEW
    app.setProperty('target', property.sinkaddr23)
    app.setProperty('count', 30)
    #app.setProperty('interval', 1)
    app.measure('ping', :samples => 1)
  end
  node.addApplication("ping") do |app| #NEW
    app.setProperty('target', property.sinkaddr24)
    app.setProperty('count', 30)
    #app.setProperty('interval', 1)
    app.measure('ping', :samples => 1)
  end
end

onEvent(:ALL_UP_AND_INSTALLED) do |event|
  info "Starting the ping"
  after 2 do
    group('Source2').startApplications
  end
  after 10 do
    group('Source1').startApplications
  end
  after 80 do
    info "Stopping the ping"
    allGroups.stopApplications
    Experiment.done
  end
end

defGraph 'RTT' do |g|
  g.ms('ping').select(:oml_seq, :dest_addr, :rtt) 
  g.caption "RTT of received packets."
  g.type 'line_chart3'
  g.mapping :x_axis => :oml_seq, :y_axis => :rtt, :group_by => :dest_addr
  g.xaxis :legend => 'oml_seq'
  g.yaxis :legend => 'rtt', :ticks => {:format => 's'}
end
}}}

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