def assignPorts(self, portList, forceTakePortOwnership=True, createVports=False,
                    rawTraffic=False, configPortName=True, timeout=900):
        """
        Description
            Assuming that you already connected to an ixia chassis and ports are available for usage.
            Use this API to assign physical ports to the virtual ports.

        Parameters
            portList: <list>: A list of ports in a list: [ [ixChassisIp, '1','1'], [ixChassisIp, '1','2'] ]
            forceTakePortOwnership: <bool>: True = Forcefully take ownership of portList.

            createVports: <bool>: Optional:
                          If True: Create vports to the amount of portList.
                          If False: Automatically create vport on the server side. Optimized for port bootup performance. 

            rawTraffic: <bool>:  If traffic item is raw, then vport needs to be /vport/{id}/protocols
            resetPortCput: <bool>: Default=False. Some cards like the Novus 10GigLan requires a cpu reboot.
            timeout: <int>: Timeout for port up state. Default=600 seconds.

        Syntaxes
            POST: /api/v1/sessions/{id}/ixnetwork/operations/assignports
                  data={arg1: [{arg1: ixChassisIp, arg2: 1, arg3: 1}, {arg1: ixChassisIp, arg2: 1, arg3: 2}],
                        arg2: [],
                        arg3: ['/api/v1/sessions/{1}/ixnetwork/vport/1',
                               '/api/v1/sessions/{1}/ixnetwork/vport/2'],
                        arg4: true}  <-- True will clear port ownership
                  headers={'content-type': 'application/json'}

            GET:  /api/v1/sessions/{id}/ixnetwork/operations/assignports/1
                  data={}
                  headers={}
            Expecting:   RESPONSE:  SUCCESS
        """
        # Verify if the portList has duplicates.
        self.verifyForDuplicatePorts(portList)

        # Verify if there is existing vports. If yes, user either loaded a saved config file or 
        # the configuration already has vports.
        # If loading a saved config file and reassigning ports, assign ports to existing vports.
        response = self.ixnObj.get(self.ixnObj.sessionUrl+'/vport')

        # If response.json() != [], means there are existing vports created already.
        if response.json() != []:
            mode = 'modify'
            preamble = self.ixnObj.sessionUrl.split('/api')[1]
            vportList = ["/api%s/vport/%s" % (preamble, str(i["id"])) for i in response.json()]
            if len(vportList) != len(portList):
                raise IxNetRestApiException('assignPorts: The amount of configured virtual ports:{0} is not equal to the amount of  portList:{1}'.format(len(vportList), len(portList)))

        else:
            if createVports == False:
                vportList = []

            if createVports:
                self.createVports(portList)
                response = self.ixnObj.get(self.ixnObj.sessionUrl+'/vport')
                preamble = self.ixnObj.sessionUrl.split('/api')[1]

                vportList = ["/api%s/vport/%s" % (preamble, str(i["id"])) for i in response.json()]
                if len(vportList) != len(portList):
                    raise IxNetRestApiException('assignPorts: The amount of configured virtual ports:{0} is not equal to the amount of  portList:{1}'.format(len(vportList), len(portList)))

        #data = {"arg1": [], "arg2": [], "arg3": vportList, "arg4": 'true'}
        data = {"arg1": [], "arg2": [], "arg3": vportList, "arg4": forceTakePortOwnership}
        [data["arg1"].append({"arg1":str(chassis), "arg2":str(card), "arg3":str(port)}) for chassis,card,port in portList]
        url = self.ixnObj.sessionUrl+'/operations/assignports'
        response = self.ixnObj.post(url, data=data)
        response = self.ixnObj.waitForComplete(response, url + '/' + response.json()['id'], silentMode=False, timeout=timeout, ignoreException=True)

        # Ignore these verifications.  Avoid trying to resolve too many issues.
        '''
        if response.json()['state'] in ['ERROR', 'EXCEPTION']:
            # Some cards like the Novus 10gLan sometimes requires a cpu reboot.
            # To reboot the port cpu, the ports have to be assigned to a vport first.
            # So it has to be done at this spot.
            self.resetPortCpu(vportList=vportList, portList=portList)
            self.verifyPortState()            
            raise IxNetRestApiException('assignPort Error: {}'.format(response.json()['message']))
        elif response.json()['state'] == 'IN_PROGRESS':
            raise IxNetRestApiException('assignPort Error: Port failed to boot up after 120 seconds')
        else:
            response = self.ixnObj.get(self.ixnObj.sessionUrl+'/vport')
            for vport in response.json():
                chassisIp = vport['assignedTo'].split(':')[0]
                slot = vport['assignedTo'].split(':')[1]
                port = vport['assignedTo'].split(':')[2]
                currentPort = [chassisIp, int(slot), int(port)]
                for chassis,card,port in portList:
                    currentPortList = [chassis, int(card), int(port)]
                    if set(currentPort) & set(currentPortList):
                        if 'License Failed' in vport['connectionStatus']:
                            raise IxNetRestApiException('Port License failed.')

                        if vport['connectionStatus'] == 'connectedLinkDown':
                            raise IxNetRestApiException('Port link connection is down: {0}'.format(vport['assignedTo']))
        '''

        # Verify if port license was the cause of the assignport failure 
        if response.json()['state'] in ['ERROR', 'EXCEPTION']:
            vportResponse = self.ixnObj.get(self.ixnObj.sessionUrl+'/vport')
            for vport in vportResponse.json():
                chassisIp = vport['assignedTo'].split(':')[0]
                slot = vport['assignedTo'].split(':')[1]
                port = vport['assignedTo'].split(':')[2]
                currentPort = [chassisIp, int(slot), int(port)]

                for chassis,card,port in portList:
                    currentPortList = [chassis, int(card), int(port)]
                    if set(currentPort) & set(currentPortList):
                        if 'License Failed' in vport['connectionStatus']:
                            raise IxNetRestApiException('Port License failed.')
                        if vport['connectionStatus'] == 'connectedLinkDown':
                            raise IxNetRestApiException('Port link connection is down: {0}'.format(vport['assignedTo']))
                        
            raise IxNetRestApiException('AssignPort failed: {}'.format(response.json()))

        if response.json()['state'] == 'IN_PROGRESS':
            raise IxNetRestApiException('AssignPort failed: It has been 10 minutes and the ports have not booted up successful. Something is wrong. Maybe you need to reboot the port CPU.')

        if configPortName:
            # Name the vports
            for vportObj in self.getAllVportList():
                port = self.getPhysicalPortFromVport([vportObj])[0]
                chassisIp = port.split(':')[0]
                card = port.split(':')[1]
                port = port.split(':')[2]
                self.ixnObj.patch(self.ixnObj.httpHeader+vportObj, data={'name': 'Port'+card+'_'+port})

        if rawTraffic:
            vportProtocolList = []
            for vport in self.getAllVportList():
                vportProtocolList.append(vport+'/protocols')
            return vportProtocolList
        else:
            return vportList