def showPacketHeaderFieldNames(self, stackObj):
        """
        Description
           Get all the packet header field names.

        Parameters
           stackObj = /api/v1/sessions/1/ixnetwork/traffic/trafficItem/{id}/configElement/{id}/stack/{id}

        Example for Ethernet stack field names
           1: Destination MAC Address
           2: Source MAC Address
           3: Ethernet-Type
           4: PFC Queue
        """
        self.ixnObj.logInfo('showPacketHeaderFieldNames: %s' % stackObj+'/field', timestamp=False)
        response = self.ixnObj.get(self.ixnObj.httpHeader+stackObj+'/field?skip=0&take=end')

        for eachField in  response.json():
            if 'id' in eachField:
                id = eachField['id']
                fieldName = eachField['displayName']
                self.ixnObj.logInfo('\t{0}: {1}'.format(id, fieldName), timestamp=False)

            if 'data' in response.json():
                for eachDataField in response.json()['data']:
                    if 'id' in eachDataField:
                        id = eachDataField['id']
                        fieldName = eachDataField['displayName']
                        self.ixnObj.logInfo('\t{0}: {1}'.format(id, fieldName), timestamp=False)