<div class="wiki-content maincontent">
<h3>For ActiveMQ 3.x/4.x</h3>


<p>To use pure in-memory messaging you just need to set the broker URL to be</p>
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vm://localhost
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<p>&#160;</p>

<p>Actually you can use any text after <em>vm://</em> so that you can segment multiple logical JMS brokers within the same JVM and classloader, using the name to distinguish between them.</p>

<p>There is an example of how to do this along with a description of the available protocols in the <link><page ri:content-title="URI Protocols"></page><link-body>Protocols overview</link-body></link>.</p>

<p>Also see: <link><page ri:content-title="How should I use the VM transport"></page><link-body>how to optimise the VM transport</link-body></link></p></div>