for (i = 0; i < ids->n_controllers; i++) {
uint16_t id = ntohs(((ovs_be16 *)(nac_ids + 1))[i]);
ofpbuf_put(out, &id, sizeof id);
for (i = 0; i < ids->n_controllers; i++) {
uint16_t id = ntohs(((ovs_be16 *)(nac_ids + 1))[i]);
ofpbuf_put(out, &id, sizeof id);