DEFUN (ipv6_nd_adv_interval_config_option,
       ipv6_nd_adv_interval_config_option_cmd,
       "ipv6 nd adv-interval-option",
       "Interface IPv6 config commands\n"
       "Neighbor discovery\n"
       "Advertisement Interval Option\n")
{
  struct interface *ifp;
  struct zebra_if *zif;

  ifp = (struct interface *) vty->index;
  zif = ifp->info;

  zif->rtadv.AdvIntervalOption = 1;

  return CMD_SUCCESS;
}
DEFUN (ipv6_nd_adv_interval_config_option,
       ipv6_nd_adv_interval_config_option_cmd,
       "ipv6 nd adv-interval-option",
       "Interface IPv6 config commands\n"
       "Neighbor discovery\n"
       "Advertisement Interval Option\n")
{
  struct interface *ifp;
  struct zebra_if *zif;

  ifp = (struct interface *) vty->index;
  zif = ifp->info;

  zif->rtadv.AdvIntervalOption = 1;

  return CMD_SUCCESS;
}