void ofproto_set_max_backoff(struct ofproto *, int max_backoff);
void ofproto_set_desc(struct ofproto *,
const char *manufacturer, const char *hardware,
void ofproto_set_max_backoff(struct ofproto *, int max_backoff);
void ofproto_set_desc(struct ofproto *,
const char *manufacturer, const char *hardware,