pool_put_index (nam->list_pool, a->per_service_index);
pool_put_index (nam->affinity_pool, value.value);
if (clib_bihash_add_del_16_8 (&nam->affinity_hash, &kv, 0))
pool_put_index (nam->list_pool, a->per_service_index);
pool_put_index (nam->affinity_pool, value.value);
if (clib_bihash_add_del_16_8 (&nam->affinity_hash, &kv, 0))