'Sits in between _allocate_fixed_ips and allocate_fixed_ip to
perform network lookup on the far side of rpc.'

def _rpc_allocate_fixed_ip(self, context, instance_id, network_id, **kwargs):

    network = self._get_network_by_id(context, network_id)
    return self.allocate_fixed_ip(context, instance_id, network, **kwargs)
