def startTraffic(self, regenerateTraffic=True, applyTraffic=True, blocking=False):
        """
        Description
            Start traffic and verify traffic is started.
            This function will also give you the option to regenerate and apply traffic.

        Parameter
            regenerateTraffic: <bool>
                          
            applyTraffic: <bool> 
                          In a situation like packet capturing, you cannot apply traffic after
                          starting packet capture because this will stop packet capturing. 
                          You need to set applyTraffic to False in this case.

            blocking: <bool> If True, API server doesn't return until it has
                             started traffic and ready for stats.  Unblocking is the opposite.

        Syntax
            For blocking state:
               POST:  /api/v1/sessions/{id}/ixnetwork/traffic/operations/startstatelesstrafficblocking'
               DATA:  {arg1: ['/api/v1/sessions/{id}/ixnetwork/traffic/trafficItem/{id}' ...]}

            For non blocking state:
               POST: /api/v1/sessions/1/ixnetwork/traffic/operations/start
               DATA: {arg1: '/api/v1/sessions/{id}/ixnetwork/traffic'}

        Requirements:
            For non blocking state only:

               # You need to check the traffic state before getting stats.
               # Note: Use the configElementObj returned by configTrafficItem()
               if trafficObj.getTransmissionType(configElementObj) == "fixedFrameCount":
                   trafficObj.checkTrafficState(expectedState=['stopped', 'stoppedWaitingForStats'], timeout=45)

               if trafficObj.getTransmissionType(configElementObj) == "continuous":
                   trafficObj.checkTrafficState(expectedState=['started', 'startedWaitingForStats'], timeout=45)
        """
        if regenerateTraffic:
            self.regenerateTrafficItems()

        if applyTraffic:
            self.applyTraffic()

        if blocking == False:
            url = self.ixnObj.sessionUrl+'/traffic/operations/start'
            response = self.ixnObj.post(url, data={'arg1': self.ixnObj.sessionUrl+'/traffic'})
            self.ixnObj.waitForComplete(response, url + '/' + response.json()['id'], timeout=120)

        # Server will go into blocking state until it is ready to accept the next api command.
        if blocking == True:
            enabledTrafficItemList = self.getAllTrafficItemObjects(getEnabledTrafficItemsOnly=True)
            url = self.ixnObj.sessionUrl+'/traffic/trafficItem/operations/startstatelesstrafficblocking'
            response = self.ixnObj.post(url, data={'arg1': enabledTrafficItemList})
            self.ixnObj.waitForComplete(response, url + '/' + response.json()['id'], timeout=120)