end an ARP request
	after the virtual IP is switched.
	Set the only path such as "/usr/sbin".
</p>
</dd>

<dt><a name="ARPING_CMD"></a>arping_cmd</dt>
<dd>
<p>
	This parameter specifies a command to send an ARP request
	after the virtual IP is switched.
	Set the command and parameters such as 
	"arping -U $_IP_$ -w 1".
	$_IP_$ is replaced by the IP address specified in delegate_IP.
</p>
</dd>

<dt><a name="WD_LIFE_POINT"></a>wd_life_point</dt>
<dd>
<p>
    The times to retry a failed life check of pgpool-II