code: def set_iomem(self, iomem):
          
  
          yield from self._hypervisor.send('c3600 set_iomem "{name}" {size}'.format(name=self._name, size=iomem))
  
          log.info('Router "{name}" [{id}]: I/O memory updated from {old_iomem}% to {new_iomem}%'.format(name=self._name,
                                                                                                         id=self._id,
                                                                                                         old_iomem=self._iomem,
                                                                                                         new_iomem=iomem))
          self._iomem = iomem
docs: Set I/O memory size for this router.
  
          :param iomem: I/O memory size