<div class="wiki-content maincontent"><p>When you look at a broker using <a shape="rect" href="jmx.xml">JMX</a> you will see a number of topics starting with <strong>ActiveMQ.Advisory.</strong>. These are the destinations used by the <a shape="rect" href="advisory-message.xml">Advisory Message</a> feature of ActiveMQ which allows you to listen to the behaviour of the system.</p></div>