docs: def updateRouterStatus(self):
          """force update to router as if there is child id request"""
          print '%s call updateRouterStatus' % self.port
          cmd = 'state'
          while True:
              state = self.__sendCommand(cmd)[0]
              if state == 'detached':
                  continue
              elif state == 'child':
                  break
              else:
                  return False
  
          cmd = 'state router'
          return self.__sendCommand(cmd)[0] == 'Done'