<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def suspend(self):
 """ Suspends this router. """


        status = yield from self.get_status()
        if status == "running":
            yield from self._hypervisor.send('vm suspend "{name}"'.format(name=self._name))
            self.status = "suspended"
            log.info('Router "{name}" [{id}] has been suspended'.format(name=self._name, id=self._id))