def run_setup
      setup_tcl = File.open("/var/tmp/setup-#{@buildtime}", 'w')
      setup_tcl.write setup
      setup_tcl.close
      system "#@ixia_exe /var/tmp/setup-#{@buildtime}"
      File.delete setup_tcl
    end
def run_setup
      setup_tcl = File.open("/var/tmp/setup-#{@buildtime}", 'w')
      setup_tcl.write setup
      setup_tcl.close
      system "#@ixia_exe /var/tmp/setup-#{@buildtime}"
      File.delete setup_tcl
    end
Load IxN file, start all protocols and then start traffic