set default mandatory Thread Network parameter value

def setDefaultValues(self):
        """set default mandatory Thread Network parameter value"""
        print '%s call setDefaultValues' % self.port

        # initialize variables
        self.networkName = ModuleHelper.Default_NwkName
        self.networkKey = ModuleHelper.Default_NwkKey
        self.channel = ModuleHelper.Default_Channel
        self.channelMask = "0x7fff800" #(0xffff << 11)
        self.panId = ModuleHelper.Default_PanId
        self.xpanId = ModuleHelper.Default_XpanId
        self.meshLocalPrefix = ModuleHelper.Default_MLPrefix
        self.pskc = "00000000000000000000000000000000"  # OT only accept hex format PSKc for now
        self.securityPolicySecs = ModuleHelper.Default_SecurityPolicy
        self.securityPolicyFlags = "onrcb"
        self.activetimestamp = ModuleHelper.Default_ActiveTimestamp
        #self.sedPollingRate = ModuleHelper.Default_Harness_SED_Polling_Rate
        self.sedPollingRate = 3
        self.deviceRole = None
        self.provisioningUrl = ''
        self.hasActiveDatasetToCommit = False
        self.logThread = Queue()
        self.logThreadStatus = self.logStatus['stop']
        self.networkDataRequirement = ''      # indicate Thread device requests full or stable network data
        self.isPowerDown = False              # indicate if Thread device experiences a power down event
        self._addressfilterMode = 'disable'   # indicate AddressFilter mode ['disable', 'whitelist', 'blacklist']
        self._addressfilterSet = set()        # cache filter entries
        self.isActiveCommissioner = False     # indicate if Thread device is an active commissioner
        self._lines = None                    # buffered lines read from device

        # initialize device configuration
        try:
            self.setMAC(self.mac)
            self.__setChannelMask(self.channelMask)
            self.__setSecurityPolicy(self.securityPolicySecs, self.securityPolicyFlags)
            self.setChannel(self.channel)
            self.setPANID(self.panId)
            self.setXpanId(self.xpanId)
            self.setNetworkName(self.networkName)
            self.setNetworkKey(self.networkKey)
            self.setMLPrefix(self.meshLocalPrefix)
            self.setPSKc(self.pskc)
            self.setActiveTimestamp(self.activetimestamp)
        except Exception, e:
            ModuleHelper.WriteIntoDebugLogger('setDefaultValue() Error: ' + str(e))