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<section xmlns="" version="5.0" xml:id="Java-Broker-Concepts-Ports">
<para> The Broker supports configuration of <emphasis>Ports</emphasis> to specify the particular
AMQP messaging and HTTP management connectivity it offers for use. </para>
<para> Each Port is configured with the particular <emphasis>Protocols</emphasis> and
<emphasis>Transports</emphasis> it supports, as well as the <emphasis>Authentication
Provider</emphasis> to be used to authenticate connections. Where SSL is in use, the
<emphasis>Port</emphasis> configuration also defines which <emphasis>Keystore</emphasis>
to use and (where supported) which <emphasis>TrustStore(s)</emphasis> and whether Client
Certificates should be requested/required. </para>
<para> Different <emphasis>Ports</emphasis> can support different protocols, and many
<emphasis>Ports</emphasis> can be configured on the Broker.</para>
<para> The following AMQP protocols are currently supported by the Broker: <itemizedlist>
<listitem><para><emphasis>AMQP 0-8</emphasis></para></listitem>
<listitem><para><emphasis>AMQP 0-9</emphasis></para></listitem>
<listitem><para><emphasis>AMQP 0-9-1</emphasis></para></listitem>
<listitem><para><emphasis>AMQP 0-10</emphasis></para></listitem>
<listitem><para><emphasis>AMQP 1.0</emphasis></para></listitem>
<para> Additionally, HTTP ports can be configured for use by the associated management
plugin. </para>
<para>This diagram explains how Ports, <link linkend="Java-Broker-Concepts-Authentication-Providers">Authentication Providers</link>
and an Access Control Provider work together to allow an application to form a connection to
a Virtualhost.<figure>
<title>Control flow during Authentication</title>
<imagedata fileref="images/Broker-PortAuthFlow.png" format="PNG" scalefit="1"/>
<phrase>Control flow during Authentication</phrase>