def METHOD_NAME(isis_common_setup_teardown, isis_setup_teardown_l1, nbrhosts):
    selected_connections = isis_common_setup_teardown
    (dut_host, dut_port, nbr_host, nbr_port) = selected_connections[0]
    nbr_name = get_nbr_name(nbrhosts, nbr_host)
    pytest_assert(wait_until(10, 2, 0, check_isis_neighbor_l1, dut_host, nbr_name, 'Down'),
                  "ISIS Neighbor {} is not Down state".format(nbr_name))