def startStopMldHostNgpf(self, mldHostObjList, action='start'):
        """
        Description
            Start or stop MLD Host.  For IPv6 only.

        Parameters
            mldHostObjList: Provide a list of one or more mldHost object handles to start or stop.
                         Ex: ["/api/v1/sessions/1/ixnetwork/topology/1/deviceGroup/1/ethernet/1/ipv6/2/mldHost/1", ...]

            action: start or stop
        """
        if type(mldHostObjList) != list:
            raise IxNetRestApiException('startStopMldHostNgpf error: The parameter mldHostObjList must be a list of objects.')

        url = self.ixnObj.sessionUrl+'/topology/deviceGroup/ethernet/ipv6/mldHost/operations/'+action
        data = {'arg1': mldHostObjList}
        self.ixnObj.logInfo('startStopMldHostNgpf: {0}'.format(action))
        self.ixnObj.logInfo('\t%s' % mldHostObjList)
        response = self.ixnObj.post(url, data=data)
        self.ixnObj.waitForComplete(response, url+'/'+response.json()['id'])