58 lines
4.2 KiB
HTML
58 lines
4.2 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="DDM listener program" />
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<meta name="abstract" content="The DDM listener allows client applications to establish TCP/IP connections with an associated server job by handling and routing inbound connection requests. After the client has established communications with the server job, there is no further association between the client and the listener for the duration of that connection." />
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<meta name="description" content="The DDM listener allows client applications to establish TCP/IP connections with an associated server job by handling and routing inbound connection requests. After the client has established communications with the server job, there is no further association between the client and the listener for the duration of that connection." />
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<meta name="DC.subject" content="Listener program" />
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<meta name="keywords" content="Listener program" />
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<meta name="DC.Relation" scheme="URI" content="rbae5sockcon.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1999, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1999, 2006" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>DDM listener program</title>
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</head>
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<body id="rbae5srvlstn"><a name="rbae5srvlstn"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">DDM listener program</h1>
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<div><p>The DDM listener allows client applications to establish TCP/IP
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connections with an associated server job by handling and routing inbound
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connection requests. After the client has established communications with
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the server job, there is no further association between the client and the
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listener for the duration of that connection.</p>
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<div class="section"><p>The DDM listener program runs in a batch job. There is a one-to-many
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relationship between it and the actual server jobs; there is one listener
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and potentially many DDM server jobs. The server jobs are normally prestart
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jobs. The listener job runs in the QSYSWRK subsystem.</p>
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</div>
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<div class="section"><p>The DDM listener must be active in order for DRDA<sup>®</sup> application
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requesters and DDM source systems to establish connections with
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the DDM TCP/IP server. You can request that the DRDA listener be started automatically
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by either using the<span class="cmdname"> CHGDDMTCPA AUTOSTART(*YES)</span> CL command
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or through <span class="keyword">iSeries™ Navigator</span>. In <span class="keyword">iSeries Navigator</span>, navigate to the DDM settings: <span class="menucascade"><span class="uicontrol">Network</span> > <span class="uicontrol">Servers</span> > <span class="uicontrol">TCP/IP</span></span>. This will cause the listener to be started when TCP/IP is
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started. When starting the DRDA listener, both the QSYSWRK subsystem and TCP/IP
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must be active.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbae5sockcon.htm" title="Several concepts pertain specifically to the TCP/IP communications support used by DRDA and DDM.">TCP/IP communication support concepts for DDM</a></div>
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</div>
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</div>
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</body>
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</html>
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