code: def set_system_id(self, system_id):
          
  
          yield from self._hypervisor.send('{platform} set_system_id "{name}" {system_id}'.format(platform=self._platform,
                                                                                                  name=self._name,
                                                                                                  system_id=system_id))
  
          log.info('Router "{name}" [{id}]: system ID updated from {old_id} to {new_id}'.format(name=self._name,
                                                                                                id=self._id,
                                                                                                old_id=self._system_id,
                                                                                                new_id=system_id))
          self._system_id = system_id
docs: Sets the system ID.
  
          :param system_id: a system ID (also called board processor ID)