for poller configuration you need

<service name="AVAIL" interval="300000"
            user-defined="false" status="on">
            <parameter key="retry" value="3"/>
            <parameter key="timeout" value="3000"/>
            <parameter key="rrd-repository" value="/opt/opennms/share/rrd/response"/>
            <parameter key="ds-name" value="icmp"/>
        </service>



and 

    <monitor service="AVAIL" class-name="org.opennms.netmgt.poller.monitors.AvailabilityMonitor"/>

and capsd confi

<protocol-plugin protocol="AVAIL"
        class-name="org.opennms.netmgt.capsd.plugins.IcmpPlugin"
        scan="off" user-defined="false">
        <property key="timeout" value="2000"/>
        <property key="retry" value="1"/>
    </protocol-plugin>