if (0 == is_add) {
vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX, sw_if_index);
if (0 == is_add) {
vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX, sw_if_index);