nbr_itimer
void nbr_itimer(int, short, void *);
evtimer_set(&nbr->inactivity_timer, nbr_itimer, nbr);
evtimer_set(&nbr->inactivity_timer, nbr_itimer, nbr);
void nbr_itimer(int, short, void *);
evtimer_set(&nbr->inactivity_timer, nbr_itimer, nbr);
void nbr_itimer(int, short, void *);