public boolean isMultipleServerConnectionsAllowed() {
        return JiveGlobals.getBooleanProperty("xmpp.server.session.allowmultiple", true);
    }
Returns true if remote servers are allowed to have more than one connection to this
server. Having more than one connection may improve number of packets that can be
transfered per second. This setting only used by the server dialback mehod.<p>

It is highly recommended that {@link #getServerSessionTimeout()} is enabled so that
dead connections to this server can be easily discarded.

@return true if remote servers are allowed to have more than one connection to this
        server.
xmppserver/src/main/java/org/jivesoftware/openfire/SessionManager.java