Infinispan.xml jgroup configuration:

<jgroups>
        <stack name="image-tcp" extends="tcp">
            <TCP bind_addr="SITE_LOCAL"
                 bind_port="xxxx"
                 enable_diagnostics="false"
                 port_range="0"
            />

            <MPING bind_addr="SITE_LOCAL"/>
        </stack>

        <stack name="image-udp" extends="udp">
            <UDP enable_diagnostics="false"
                 port_range="0"
            />

            <FD_SOCK client_bind_port="xxxxx" start_port="xxxxx"/>
        </stack>

        <stack-file name="relay-global" path="jgroups-relay.xml"/>

        <stack name="xsite" extends="image-tcp">
            <relay.RELAY2 xmlns="urn:org:jgroups" site="xxx" max_site_masters="x"
                          can_become_site_master="true"/>
            <remote-sites default-stack="relay-global">
                <remote-site name="xxxA"/>
                <remote-site name="xxxB"/>
            </remote-sites>
        </stack>
    </jgroups>


Reference to jgroups-relay.xml

<config xmlns="urn:org:jgroups"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups-4.0.xsd">

    <TCP bind_addr="match-interface:eth0"
         bind_port="${jgroups.relay.bind.port:xxxx}"
         enable_diagnostics="false"
         external_addr="xxx.xxx.xxx.xxx"
         external_port="xxxx"
         port_range="0"
    />

    <TCPPING initial_hosts="xxxx.xxxx.xxxx.xxx,xxxx.xxxx.xxxx.xxx"
             port_range="0"
    />

    <MERGE3/>

    <FD_SOCK client_bind_port="xxxxx" start_port="xxxxx"/>

    <FD_ALL timeout="180000"/>

    <VERIFY_SUSPECT/>

    <pbcast.NAKACK2 use_mcast_xmit="false"/>

    <UNICAST3/>

    <pbcast.STABLE/>

    <pbcast.GMS/>

    <MFC/>

    <FRAG3/>
  </config>