void connmgr_send_port_status(struct connmgr *, struct ofconn *source,
const struct ofputil_phy_port *, uint8_t reason);
void connmgr_send_flow_removed(struct connmgr *,
void connmgr_send_port_status(struct connmgr *, struct ofconn *source,
const struct ofputil_phy_port *, uint8_t reason);
void connmgr_send_flow_removed(struct connmgr *,