def check_canary_table(self):
        try:
            flows = self.dump_flows(constants.CANARY_TABLE)
        except __HOLE__:
            LOG.exception(_LE("Failed to communicate with the switch"))
            return constants.OVS_DEAD
        return constants.OVS_NORMAL if flows else constants.OVS_RESTARTED
dataset/ETHPy150Open openstack/neutron/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/br_int.py/OVSIntegrationBridge.check_canary_table