tp->t_rxtshift = 0;
}
tcp_timer_activate(tp, TT_REXMT, tp->t_rxtcur);
} else if (len == 0 && so->so_snd.sb_cc &&
!tcp_timer_active(tp, TT_REXMT) &&
!tcp_timer_active(tp, TT_PERSIST)) {
tcp_setpersist(tp);
} else {
/*
* Persist case, update snd_max but since we are in