Using AODV with the testbed

Currently, we support AODV-UU protocol 0.9.1 on kernel version 2.6.12. Using the application and prototype definition format, we can currently specify

• the interface to run on
• enable logging
• enable route table logging

For Experimenters

• Step 1: In order to use AODV routing protocol in your experiment, make sure you use the baseline.ndz image on your nodes that has aodv installed.
• Step 2: Use the following experiment script. This will launch both the traffic generator and AODV on the nodes. AODV currently logs locally to the node every N secs which is configurable. However, in the future, this will be OMLized to log into the database instead.

AODV router prototype and app defs are installed on all consoles. So users should be able to use it from any console

Experiment script

##################################################
# AODV with OTG
# Every node has two prototypes: sender/receiver and AODV
# AODV rt table logs are reported every 4 secs on the nodes to
# /var/log/aodv.rtlog
# These will soon be OMLized to report to the database instead
##################################################

Experiment.name = "tutorial-aodv"
Experiment.project = "orbit:tutorial"

#
# Define nodes used in experiment
#
defNodes('sender', [1,2]) {|node|
  node.image = nil  # assume the right image to be on disk

  node.prototype("test:proto:sender", {
    'destinationHost' => '192.168.1.1',
    'packetSize' => 1024,
    'rate' => 300,
    'protocol' => 'udp'
  })
  node.net.w0.mode = "master"
}

defNodes('receiver', [1,1]) {|node|
  node.image = nil  # assume the right image to be on disk
  node.prototype("test:proto:receiver" , {
    'hostname' => '192.168.1.1',
    'protocol' => 'udp_libmac'
  })
  node.net.w0.mode = "managed"
}

defNodes('everyone',[[1,1],[1,2]]) {|node|
  node.image = nil
  node.prototype("test:proto:aodvrouter", {
'interface' => 'ath0',   #Run aodvd on interface ath0
  'log' => nil,            #Enable logging
  'routelog' => 4          #Enable routing table logging every 4 secs
  })
}


allNodes.net.w0 { |w|
  w.type = 'b'
  w.essid = "helloworld"
  w.ip = "%192.168.%x.%y"
}

#
# Now, start the application
#
whenAllInstalled() {|node|
 #First start AODV daemon on all nodes
  NodeSet['everyone'].startApplications

  wait 10

  #Then start receiver and sender
  NodeSet['receiver'].startApplications
  wait 30
  NodeSet['sender'].startApplications

  wait 180

  Experiment.done
}

For Developers

The application definition and prototype definitions corresponding to AODV router are as follows

Application definition

#
# Create an application representation from scratch
#
require 'handler/appDefinition'

a = AppDefinition.create('test:app:aodvd')
a.name = "aodvd"
a.version(0, 0, 1)
a.shortDescription = "AODV routing protocol"
a.description = <<TEXT
AODV launch
TEXT

# addProperty(name, description, mnemonic, type, isDynamic = false, constraints
= nil)
a.addProperty('interface', 'Interface to run on', ?i, String, false)
a.addProperty('log', 'Enable logging', ?l, String, false)
a.addProperty('rttable', 'Log rting table every N secs', ?r, String, false)
a.path = "/usr/sbin/aodvd"

if $0 == __FILE__
  require 'stringio'
  require 'rexml/document'
  include REXML

  sio = StringIO.new()
  a.to_xml.write(sio, 2)
  sio.rewind
  puts sio.read

  sio.rewind
  doc = Document.new(sio)
  t = AppDefinition.from_xml(doc.root)

  puts
  puts "-------------------------"
  puts
  t.to_xml.write($stdout, 2)

end

Prototype definition

#
# Define a prototype
#

require 'handler/prototype'
require 'handler/filter'
require 'handler/appDefinition'

p = Prototype.create("test:proto:aodvrouter")
p.name = "AODV daemon"
p.description = "Nodes which receive packets"
p.defProperty('interface', 'Interface to listen on')
p.defProperty('log', 'Enable logging')
p.defProperty('routelog', 'Enable logging')

aodvd = p.addApplication('aodvd', "test:app:aodvd")
aodvd.bindProperty('interface')
aodvd.bindProperty('log')
aodvd.bindProperty('rttable','routelog')


if $0 == __FILE__
  p.to_xml.write($stdout, 2)
  puts
end