TCPT_2MSL
TCP_TIMER_ARM(tp, TCPT_2MSL,
TCP_TIMER_ARM(tp, TCPT_2MSL, 2 * tp->t_msl);
TCP_TIMER_ARM(tp, TCPT_2MSL, 2 * tp->t_msl);
TCP_TIMER_ARM(tp, TCPT_2MSL, 2 * tp->t_msl);
TCP_TIMER_ARM(tp, TCPT_2MSL, 2 * tp->t_msl);
if (!callout_expired(&tp->t_timer[TCPT_2MSL])) {
TCP_TIMER_ARM(tp, TCPT_2MSL, tp->t_keepintvl);
PRU_SLOWTIMO | (TCPT_2MSL << 8));
TCP_TIMER_ARM(tp, TCPT_2MSL, tp->t_maxidle);
TCP_TIMER_DISARM(tp, TCPT_2MSL);
TCP_TIMER_ARM(tp, TCPT_2MSL, tp->t_maxidle);