text: # -*- coding: cp1252 -*-
  ################################################################################
  #                                                                              #
  #    Copyright 1997 - 2019 by IXIA  Keysight                                   #
  #    All Rights Reserved.                                                      #
  #                                                                              #
  ################################################################################
  
  ################################################################################
  #                                                                              #
  #                                LEGAL  NOTICE:                                #
  #                                ==============                                #
  # The following code and documentation (hereinafter "the script") is an        #
  # example script for demonstration purposes only.                              #
  # The script is not a standard commercial product offered by Ixia and have     #
  # been developed and is being provided for use only as indicated herein. The   #
  # script [and all modifications enhancements and updates thereto (whether      #
  # made by Ixia and/or by the user and/or by a third party)] shall at all times #
  # remain the property of Ixia.                                                 #
  #                                                                              #
  # Ixia does not warrant (i) that the functions contained in the script will    #
  # meet the users requirements or (ii) that the script will be without          #
  # omissions or error-free.                                                     #
  # THE SCRIPT IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND IXIA         #
  # DISCLAIMS ALL WARRANTIES EXPRESS IMPLIED STATUTORY OR OTHERWISE              #
  # INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR #
  # A PARTICULAR PURPOSE OR OF NON-INFRINGEMENT.                                 #
  # THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SCRIPT  IS WITH THE #
  # USER.                                                                        #
  # IN NO EVENT SHALL IXIA BE LIABLE FOR ANY DAMAGES RESULTING FROM OR ARISING   #
  # OUT OF THE USE OF OR THE INABILITY TO USE THE SCRIPT OR ANY PART THEREOF     #
  # INCLUDING BUT NOT LIMITED TO ANY LOST PROFITS LOST BUSINESS LOST OR          #
  # DAMAGED DATA OR SOFTWARE OR ANY INDIRECT INCIDENTAL PUNITIVE OR              #
  # CONSEQUENTIAL DAMAGES EVEN IF IXIA HAS BEEN ADVISED OF THE POSSIBILITY OF    #
  # SUCH DAMAGES IN ADVANCE.                                                     #
  # Ixia will not be required to provide any software maintenance or support     #
  # services of any kind (e.g. any error corrections) in connection with the     #
  # script or any part thereof. The user acknowledges that although Ixia may     #
  # from time to time and in its sole discretion provide maintenance or support  #
  # services for the script any such services are subject to the warranty and    #
  # damages limitations set forth herein and will not obligate Ixia to provide   #
  # any additional maintenance or support services.                              #
  #                                                                              #
  ################################################################################
  
  ################################################################################
  #                                                                              #
  # Description:                                                                 #
  #                                                                              #
  # About Topology:                                                              #
  #     On each port, it will create one topology of LDP dual stack router.      #
  #     In each topology, there will be one device group and a network group.    #
  #     The device group will simulate as a LDP dual stack router having LDP and #
  #     LDPv6 interface over IPv4 and IPv6 stack respectively and a basic LDP    #
  #     dual stack router connected to both IPv4 and IPv6 interface. The         #
  #     transport connection preference in LDP router is set to IPv6.            #
  #     The network groups consists of both IPv4 and IPv6 prefix pools.          #
  #     Traffic is configured in between IPv6 prefix pools as end points.        #       
  #                                                                              #
  # Script Flow:                                                                 #
  #    1. Configuration of protocols as described in topology.                   #
  #    2. Start the LDP protocol.                                                #
  #    3. Retrieve protocol statistics.                                          #
  #    4. Retrieve protocol learned info.                                        #
  #    5. Change LDP FEC labels & apply change on the fly                        #
  #    6. Retrieve protocol learned info again.                                  #
  #    7. Configure L2-L3 traffic.                                               #
  #    8. Start the L2-L3 traffic.                                               #
  #   11. Retrieve L2-L3 traffic stats.                                          #
  #   12. Stop L2-L3 traffic.                                                    #
  #   13. Stopallprotocols.                                                      #
  #                                                                              #                                                                                
  ################################################################################
  
  import os
  import sys
  import time
  
  def assignPorts (ixNet, realPort1, realPort2) :
       chassis1 = realPort1[0]
       chassis2 = realPort2[0]
       card1    = realPort1[1]
       card2    = realPort2[1]
       port1    = realPort1[2]
       port2    = realPort2[2]
  
       root = ixNet.getRoot()
       vport1 = ixNet.add(root, 'vport')
       ixNet.commit()
       vport1 = ixNet.remapIds(vport1)[0]
  
       vport2 = ixNet.add(root, 'vport')
       ixNet.commit()
       vport2 = ixNet.remapIds(vport2)[0]
  
       chassisObj1 = ixNet.add(root + '/availableHardware', 'chassis')
       ixNet.setAttribute(chassisObj1, '-hostname', chassis1)
       ixNet.commit()
       chassisObj1 = ixNet.remapIds(chassisObj1)[0]
  
       if (chassis1 != chassis2) :
           chassisObj2 = ixNet.add(root + '/availableHardware', 'chassis')
           ixNet.setAttribute(chassisObj2, '-hostname', chassis2)
           ixNet.commit()
           chassisObj2 = ixNet.remapIds(chassisObj2)[0]
       else :
           chassisObj2 = chassisObj1
       # end if
  
       cardPortRef1 = chassisObj1 + '/card:%s/port:%s' % (card1,port1)
       ixNet.setMultiAttribute(vport1, '-connectedTo', cardPortRef1,
           '-rxMode', 'captureAndMeasure', '-name', 'Ethernet - 001')
       ixNet.commit()
  
       cardPortRef2 = chassisObj2 + '/card:%s/port:%s' % (card2,port2)
       ixNet.setMultiAttribute(vport2, '-connectedTo', cardPortRef2,
           '-rxMode', 'captureAndMeasure', '-name', 'Ethernet - 002')
       ixNet.commit()
  # end def assignPorts
  
  ################################################################################
  # Either feed the ixNetwork library path in the sys.path as below, or put the
  # IxNetwork.py file somewhere else where we python can autoload it.
  # "IxNetwork.py" is available in <IxNetwork_installer_path>\API\Python
  ################################################################################
  ixNetPath = r'C:\Program Files (x86)\Ixia\IxNetwork\7.40-EA\API\Python'
  sys.path.append(ixNetPath)
  import IxNetwork
  
  #################################################################################
  # Give chassis/client/ixNetwork server port/ chassis port HW port information
  # below
  #################################################################################
  ixTclServer = '10.205.28.41'
  ixTclPort   = '8981'
  ports       = [('10.205.28.12', '6', '1',), ('10.205.28.12', '6', '2',)]
  
  # get IxNet class
  ixNet = IxNetwork.IxNet()
  print("Connecting to IxNetwork client")
  ixNet.connect(ixTclServer, '-port', ixTclPort, '-version', '7.40', '-setAttribute', 'strict')
  
  # cleaning up the old configfile, and creating an empty config
  print("Cleaning up the old configfile, and creating an empty config")
  ixNet.execute('newConfig')
  
  # assigning ports
  assignPorts(ixNet, ports[0], ports[1])
  time.sleep(5)
  
  root    = ixNet.getRoot()
  vportTx = ixNet.getList(root, 'vport')[0]
  vportRx = ixNet.getList(root, 'vport')[1]
  
  
  print("Adding two topologies")
  ixNet.add(ixNet.getRoot(), 'topology', '-vports', vportTx)
  ixNet.add(ixNet.getRoot(), 'topology', '-vports', vportRx)
  ixNet.commit()
  
  topologies = ixNet.getList(ixNet.getRoot(), 'topology')
  topo1 = topologies[0]
  topo2 = topologies[1]
  
  print("Adding one device group in each topology")
  ixNet.add(topo1, 'deviceGroup')
  ixNet.add(topo2, 'deviceGroup')
  ixNet.commit()
  
  t1devices = ixNet.getList(topo1, 'deviceGroup')
  t2devices = ixNet.getList(topo2, 'deviceGroup')
  
  t1dev1 = t1devices[0]
  t2dev1 = t2devices[0]
  
  print("Configuring the multipliers (number of sessions)")
  ixNet.setAttribute(t1dev1, '-multiplier', '1')
  ixNet.setAttribute(t2dev1, '-multiplier', '1')
  ixNet.commit()
  
  print("Adding Ethernet/MAC endpoints for the device groups")
  ixNet.add(t1dev1, 'ethernet')
  ixNet.add(t2dev1, 'ethernet')
  ixNet.commit()
  
  mac1 = (ixNet.getList(t1dev1, 'ethernet'))[0]
  mac2 = (ixNet.getList(t2dev1, 'ethernet'))[0]
  
  print("Configuring the MAC addresses for the device groups")
  ixNet.setMultiAttribute(ixNet.getAttribute(mac1, '-mac') + '/counter',
          '-direction', 'increment',
          '-start',     '00:11:01:00:00:01',
          '-step',      '00:00:00:00:00:01')
  
  ixNet.setAttribute(ixNet.getAttribute(mac2, '-mac') + '/singleValue',
          '-value', '00:12:01:00:00:01')
  ixNet.commit()
  
  print("Adding IPv4 and IPv6 over Ethernet stack for both device groups")
  ixNet.add(mac1, 'ipv4')
  ixNet.add(mac2, 'ipv4')
  ixNet.add(mac1, 'ipv6')
  ixNet.add(mac2, 'ipv6')
  ixNet.commit()
  
  ipv41 = (ixNet.getList(mac1, 'ipv4'))[0]
  ipv42 = (ixNet.getList(mac2, 'ipv4'))[0]
  ipv61 = (ixNet.getList(mac1, 'ipv6'))[0]
  ipv62 = (ixNet.getList(mac2, 'ipv6'))[0]
  
  mvAddv41 = ixNet.getAttribute(ipv41, '-address')
  mvAddv42 = ixNet.getAttribute(ipv42, '-address')
  mvAddv61 = ixNet.getAttribute(ipv61, '-address')
  mvAddv62 = ixNet.getAttribute(ipv62, '-address')
  
  mvGwv41  = ixNet.getAttribute(ipv41, '-gatewayIp')
  mvGwv42  = ixNet.getAttribute(ipv42, '-gatewayIp')
  mvGwv61  = ixNet.getAttribute(ipv61, '-gatewayIp')
  mvGwv62  = ixNet.getAttribute(ipv62, '-gatewayIp')
  
  print("Configuring IPv4 addresses for both device groups")
  ixNet.setAttribute(mvAddv41 + '/singleValue', '-value', '100.1.0.2')
  ixNet.setAttribute(mvAddv42 + '/singleValue', '-value', '100.1.0.1')
  ixNet.setAttribute(mvGwv41 + '/singleValue', '-value', '100.1.0.1')
  ixNet.setAttribute(mvGwv42 + '/singleValue', '-value', "100.1.0.2")
  
  print("Configuring IPv6 addresses for both device groups")
  ixNet.setAttribute(mvAddv61 + '/singleValue', '-value', '2000:0:0:1:0:0:0:2')
  ixNet.setAttribute(mvAddv62 + '/singleValue', '-value', '2000:0:0:1:0:0:0:1')
  ixNet.setAttribute(mvGwv61 + '/singleValue', '-value', '2000:0:0:1:0:0:0:1')
  ixNet.setAttribute(mvGwv62 + '/singleValue', '-value', "2000:0:0:1:0:0:0:2")
  
  print("Configuring IPv4 prefix for both device groups")
  ixNet.setAttribute(ixNet.getAttribute(ipv41, '-prefix') + '/singleValue', '-value', '24')
  ixNet.setAttribute(ixNet.getAttribute(ipv42, '-prefix') + '/singleValue', '-value', '24')
  
  print("Configuring IPv6 prefix for both device groups")
  ixNet.setAttribute(ixNet.getAttribute(ipv61, '-prefix') + '/singleValue', '-value', '64')
  ixNet.setAttribute(ixNet.getAttribute(ipv62, '-prefix') + '/singleValue', '-value', '64')
  
  ixNet.setMultiAttribute(ixNet.getAttribute(ipv41, '-resolveGateway') + '/singleValue', '-value', 'true')
  ixNet.setMultiAttribute(ixNet.getAttribute(ipv42, '-resolveGateway') + '/singleValue', '-value', 'true')
  ixNet.setMultiAttribute(ixNet.getAttribute(ipv61, '-resolveGateway') + '/singleValue', '-value', 'true')
  ixNet.setMultiAttribute(ixNet.getAttribute(ipv62, '-resolveGateway') + '/singleValue', '-value', 'true')
  ixNet.commit()
  
  print("Adding LDP Connected Interface over IPv4 stack")
  ixNet.add(ipv41, 'ldpConnectedInterface')
  ixNet.add(ipv42, 'ldpConnectedInterface')
  ixNet.commit()
  
  ldpIf1 = ixNet.getList(ipv41, 'ldpConnectedInterface')[0]
  ldpIf2 = ixNet.getList(ipv42, 'ldpConnectedInterface')[0]
  
  print("Adding LDPv6 Connected Interface over IPv6 stack")
  ixNet.add(ipv61, 'ldpv6ConnectedInterface')
  ixNet.add(ipv62, 'ldpv6ConnectedInterface')
  ixNet.commit()
  
  ldpv6If1 = ixNet.getList(ipv61, 'ldpv6ConnectedInterface')[0]
  ldpv6If2 = ixNet.getList(ipv62, 'ldpv6ConnectedInterface')[0]
  
  print("Adding LDPv6 dual stack router in both device groups")
  ixNet.add(t1dev1, 'ldpBasicRouterV6')
  ixNet.add(t2dev1, 'ldpBasicRouterV6')
  ixNet.commit()
  
  ldpv6DualStackRouter1 = ixNet.getList(t1dev1, 'ldpBasicRouterV6')[0]
  ldpv6DualStackRouter2 = ixNet.getList(t2dev1, 'ldpBasicRouterV6')[0]
  
  ixNet.setAttribute(ipv41, '-stackedLayers', ldpv6DualStackRouter1)
  ixNet.setAttribute(ipv61, '-stackedLayers', ldpv6DualStackRouter1)
  
  ixNet.setAttribute(ipv42, '-stackedLayers', ldpv6DualStackRouter2)
  ixNet.setAttribute(ipv62, '-stackedLayers', ldpv6DualStackRouter2)
  ixNet.commit()
  
  print("Setting IPv6 as transport connection preference")
  sessionPreference1 = ixNet.getAttribute(ldpv6DualStackRouter1, '-sessionPreference')
  sessionPreference2 = ixNet.getAttribute(ldpv6DualStackRouter2, '-sessionPreference')
  
  singleValue1 = ixNet.getList(sessionPreference1, 'singleValue')[0]
  singleValue2 = ixNet.getList(sessionPreference2, 'singleValue')[0]
  
  ixNet.setAttribute(singleValue1, '-value', 'ipv6')
  ixNet.setAttribute(singleValue2, '-value', 'ipv6')
  ixNet.commit()
  
  print("Renaming the topologies and the device groups")
  ixNet.setAttribute(topo1, '-name', 'LDPv6 Topology 1')
  ixNet.setAttribute(topo2, '-name', 'LDPv6 Topology 2')
  
  ixNet.setAttribute(t1dev1, '-name', 'LDP Dual Stack Router 1')
  ixNet.setAttribute(t2dev1, '-name', 'LDP Dual Stack Router 2')
  ixNet.commit()
  
  print("Adding Network Group behind LDPv6 dual stack DG")
  ixNet.add(t1dev1, 'networkGroup')
  ixNet.add(t2dev1, 'networkGroup')
  ixNet.commit()
  
  networkGroup1 = ixNet.getList(t1dev1, 'networkGroup')[0]
  networkGroup2 = ixNet.getList(t2dev1, 'networkGroup')[0]
  
  ixNet.setAttribute(networkGroup1, '-name', 'LDP_1_Network_Group1')
  ixNet.setAttribute(networkGroup2, '-name', 'LDP_2_Network_Group1')
  ixNet.setAttribute(networkGroup1, '-multiplier', '1')
  ixNet.setAttribute(networkGroup2, '-multiplier', '1')
  ixNet.commit()
  
  print("Adding IPv4 and Ipv6 prefix pools in Network Groups")
  ixNet.add(networkGroup1, 'ipv6PrefixPools')
  ixNet.add(networkGroup1, 'ipv4PrefixPools')
  ixNet.add(networkGroup2, 'ipv6PrefixPools')
  ixNet.add(networkGroup2, 'ipv4PrefixPools')
  ixNet.commit()
  
  ipv6PrefixPools1 = ixNet.getList(networkGroup1, 'ipv6PrefixPools')[0]
  ipv4PrefixPools1 = ixNet.getList(networkGroup1, 'ipv4PrefixPools')[0]
  
  ipv6PrefixPools2 = ixNet.getList(networkGroup2, 'ipv6PrefixPools')[0]
  ipv4PrefixPools2 = ixNet.getList(networkGroup2, 'ipv4PrefixPools')[0]
  
  print("Changing count of network group address")
  ixNet.setMultiAttribute(ipv6PrefixPools1, '-numberOfAddresses', '5')
  ixNet.setMultiAttribute(ipv4PrefixPools1, '-numberOfAddresses', '5')
  ixNet.setMultiAttribute(ipv6PrefixPools2, '-numberOfAddresses', '5')
  ixNet.setMultiAttribute(ipv4PrefixPools2, '-numberOfAddresses', '5')
  ixNet.commit()
  
  print("All configuration is completed..Wait for 5 seconds...")
  time.sleep(5)
  
  ################################################################################
  # Start LDPv6 protocol and wait for 60 seconds                                 #  
  ################################################################################
  print("Starting protocols and waiting for 60 seconds for protocols to come up")
  ixNet.execute('startAllProtocols')      
  time.sleep(60)
  
  ################################################################################
  # Retrieve protocol statistics                                                 #
  ################################################################################
  print("Fetching LDP Per Port Stats")
  viewPage  = '::ixNet::OBJ-/statistics/view:"LDP Per Port"/page'
  statcap   = ixNet.getAttribute(viewPage, '-columnCaptions')
  for statValList in ixNet.getAttribute(viewPage, '-rowValues') :
      for  statVal in statValList :
          print("***************************************************")
          index = 0
          for satIndv in statVal :
              print("%-30s:%s" % (statcap[index], satIndv))
              index = index + 1
          # end for
      # end for
  # end for
  print("***************************************************")
  
  #################################################################################
  # Retrieve protocol learned info                                                #
  #################################################################################
  print("Fetching LDPv6 Basic Learned Info")
  ixNet.execute('getIPv4FECLearnedInfo', ldpv6DualStackRouter1, '1')
  ixNet.execute('getIPv6FECLearnedInfo', ldpv6DualStackRouter1, '1')
  time.sleep(5)
  linfoList  = (ixNet.getList(ldpv6DualStackRouter1, 'learnedInfo'))
  for linfo in linfoList :
      values = ixNet.getAttribute(linfo, '-values')
      print("***************************************************")
      for v in values :
          print(v)
      # end for
      print("***************************************************")
  # end for
  
  ################################################################################
  # Change the labels of FEC elements                                            #
  ################################################################################
  print("Changing Labels of LDP and LDPv6 FEC Range on second Network Group")
  ldpFEC2 = ixNet.getList(ipv4PrefixPools2, 'ldpFECProperty')[0]
  ldpv6FEC2 = ixNet.getList(ipv6PrefixPools2, 'ldpIpv6FECProperty')[0]
  
  labelV4MultiValue2 = ixNet.getAttribute(ldpFEC2, '-labelValue')
  ixNet.setMultiAttribute(labelV4MultiValue2, '-clearOverlays', 'false', '-pattern', 'counter')
  ixNet.commit()
  labelSetV4 = ixNet.add(labelV4MultiValue2, 'counter')
  ixNet.setMultiAttribute(labelSetV4, '-step', '5', '-start', '30', '-direction', 'increment')
  
  labelV6MultiValue2 = ixNet.getAttribute(ldpv6FEC2, '-labelValue')
  ixNet.setMultiAttribute(labelV6MultiValue2, '-clearOverlays', 'false', '-pattern', 'counter')
  ixNet.commit()
  labelSetV6 = ixNet.add(labelV6MultiValue2, 'counter')
  ixNet.setMultiAttribute(labelSetV6, '-step', '10', '-start', '60', '-direction', 'decrement')
  ixNet.commit()
  time.sleep(2)
  
  ################################################################################
  # Applying changes one the fly                                                 #
  ################################################################################
  print("Applying changes on the fly")
  globals   = ixNet.getRoot() + '/globals'
  topology  = globals + '/topology'
  ixNet.execute('applyOnTheFly', topology)
  time.sleep(5)
  
  #################################################################################
  # Retrieve protocol learned info again                                          #
  #################################################################################
  print("Fetching LDPv6 Basic Learned Info again after changing labels on the fly")
  ixNet.execute('getIPv4FECLearnedInfo', ldpv6DualStackRouter1, '1')
  ixNet.execute('getIPv6FECLearnedInfo', ldpv6DualStackRouter1, '1')
  time.sleep(5)
  linfoList  = (ixNet.getList(ldpv6DualStackRouter1, 'learnedInfo'))
  for linfo in linfoList :
      values = ixNet.getAttribute(linfo, '-values')
      print("***************************************************")
      for v in values :
          print(v)
      # end for
      print("***************************************************")
  # end for
  
  
  #################################################################################
  # Configure L2-L3 traffic                                                       #
  #################################################################################
  print ("Congfiguring L2/L3 Traffic Item")
  trafficItem1 = ixNet.add((ixNet.getRoot()) + '/traffic', 'trafficItem')
  ixNet.setMultiAttribute(trafficItem1, '-name', 'Traffic Item 1',
      '-roundRobinPacketOrdering', 'false',
      '-biDirectional', 'true',
      '-trafficType', 'ipv6')
  ixNet.commit()
  
  trafficItem1    = ixNet.remapIds(trafficItem1)[0]
  endpointSet1 = ixNet.add(trafficItem1, 'endpointSet')
  source       = [networkGroup1 + '/ipv6PrefixPools:1']
  destination  = [networkGroup2 + '/ipv6PrefixPools:1']
  
  ixNet.setMultiAttribute(endpointSet1,
      '-name',                  'EndpointSet-1',
      '-multicastDestinations', (''),
      '-scalableSources',       (''),
      '-multicastReceivers',    (''),
      '-scalableDestinations',  (''),
      '-ngpfFilters',           (''),
      '-trafficGroups',         (''),
      '-sources',               source,
      '-destinations',          destination)
  ixNet.commit()
  
  ixNet.setMultiAttribute(trafficItem1 + '/tracking',
      '-trackBy',        ['mplsFlowDescriptor0','trackingenabled0'],
      '-fieldWidth',     'thirtyTwoBits',
      '-protocolOffset', 'Root.0',
      '-values',         (''))
  ixNet.commit()
  
  ###############################################################################
  # Apply L2/L3 traffic                                                         #
  ###############################################################################
  print("Applying L2/L3 traffic")
  ixNet.execute('apply', (ixNet.getRoot()) + '/traffic')
  time.sleep(5)
  
  ###############################################################################
  # Start L2/L3 traffic                                                         #
  ###############################################################################
  print("Starting L2/L3 traffic")
  ixNet.execute('start', (ixNet.getRoot()) + '/traffic')
  
  print("Let traffic run for 60 seconds")
  time.sleep(60)
  
  ###############################################################################
  # Retrieve L2/L3 traffic item statistics                                      #
  ###############################################################################
  print("Retrieving all L2/L3 traffic stats")
  viewPage = '::ixNet::OBJ-/statistics/view:"Flow Statistics"/page'
  statcap =  ixNet.getAttribute(viewPage, '-columnCaptions')
  for statValList in ixNet.getAttribute(viewPage, '-rowValues') :
      for  statVal in statValList :
          print("***************************************************")
          index = 0
          for satIndv in statVal :
              print("%-30s:%s" % (statcap[index], satIndv))
              index = index + 1
          # end for
      # end for
  # end for
  print("***************************************************")
  
  #################################################################################
  # Stop L2/L3 traffic                                                            #
  #################################################################################
  print("Stopping L2/L3 traffic")
  ixNet.execute('stop', (ixNet.getRoot()) + '/traffic')
  time.sleep(5)
  
  ################################################################################
  # Stop all protocols                                                          #
  ################################################################################
  print("Stopping all protocols")
  ixNet.execute('stopAllProtocols')
  
  print("!!! Test Script Ends !!!")
  