bool connmgr_is_any_controller_connected(const struct connmgr *);
bool connmgr_is_any_controller_admitted(const struct connmgr *);
int connmgr_failure_duration(const struct connmgr *);
-void connmgr_broadcast(struct connmgr *, struct ofpbuf *);
/* In-band configuration. */
void connmgr_set_extra_in_band_remotes(struct connmgr *,