def verifyDeviceGroupStatus(self):
        queryData = {'from': '/',
                        'nodes': [{'node': 'topology', 'properties': [], 'where': []},
                                  {'node': 'deviceGroup', 'properties': ['href', 'enabled'], 'where': []},
                                  {'node': 'deviceGroup', 'properties': ['href', 'enabled'], 'where': []}]
                    }

        queryResponse = self.ixnObj.query(data=queryData)

        deviceGroupTimeout = 90
        for topology in queryResponse.json()['result'][0]['topology']:
            for deviceGroup in topology['deviceGroup']:
                deviceGroupObj = deviceGroup['href']
                response = self.ixnObj.get(self.ixnObj.httpHeader+deviceGroupObj, silentMode=False)
                # Verify if the Device Group is enabled. If not, don't go further.
                enabledMultivalue = response.json()['enabled']
                enabled = self.ixnObj.getMultivalueValues(enabledMultivalue, silentMode=False)
                if enabled[0] == 'true':
                    for counter in range(1,deviceGroupTimeout+1):
                        response = self.ixnObj.get(self.ixnObj.httpHeader+deviceGroupObj, silentMode=False)
                        deviceGroupStatus = response.json()['status']
                        self.ixnObj.logInfo('\t%s' % deviceGroupObj, timestamp=False)
                        self.ixnObj.logInfo('\t\tStatus: %s' % deviceGroupStatus, timestamp=False)
                        if counter < deviceGroupTimeout and deviceGroupStatus != 'started':
                            self.ixnObj.logInfo('\t\tWaiting %d/%d seconds ...' % (counter, deviceGroupTimeout), timestamp=False)
                            time.sleep(1)
                        if counter < deviceGroupTimeout and deviceGroupStatus == 'started':
                            break
                        if counter == deviceGroupTimeout and deviceGroupStatus != 'started':
                            raise IxNetRestApiException('\nDevice Group failed to start up')
                    
                    # Inner Device Group
                    if deviceGroup['deviceGroup'] != []:
                        innerDeviceGroupObj = deviceGroup['deviceGroup'][0]['href']
                        for counter in range(1,deviceGroupTimeout):
                            response = self.ixnObj.get(self.ixnObj.httpHeader+innerDeviceGroupObj, silentMode=True)
                            innerDeviceGroupStatus = response.json()['status']
                            self.ixnObj.logInfo('\tInnerDeviceGroup: %s' % innerDeviceGroupObj, timestamp=False)
                            self.ixnObj.logInfo('\t   Status: %s' % innerDeviceGroupStatus, timestamp=False)
                            if counter < deviceGroupTimeout and innerDeviceGroupStatus != 'started':
                                self.ixnObj.logInfo('\tWait %d/%d' % (counter, deviceGroupTimeout), timestamp=False)
                                time.sleep(1)
                            if counter < deviceGroupTimeout and innerDeviceGroupStatus == 'started':
                                break
                            if counter == deviceGroupTimeout and innerDeviceGroupStatus != 'started':
                                raise IxNetRestApiException('\nInner Device Group failed to start up')
        print()