118 lines
7.5 KiB
HTML
118 lines
7.5 KiB
HTML
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<meta name="DC.Title" content="Standard communications trace" />
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<meta name="abstract" content="The communications trace function lets you start or stop a trace of data on communications configuration objects. After you have run a trace of data, you can format the data for printing or viewing. You can view the printer file only in the output queue." />
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<meta name="description" content="The communications trace function lets you start or stop a trace of data on communications configuration objects. After you have run a trace of data, you can format the data for printing or viewing. You can view the printer file only in the output queue." />
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<meta name="DC.subject" content="communications trace, system service tools (SST), SST (system service tools)" />
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<title>Standard communications trace</title>
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</head>
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<body id="rbal1standardtrace"><a name="rbal1standardtrace"><!-- --></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">Standard communications trace</h1>
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<div><p>The communications trace function lets you start or stop a trace
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of data on communications configuration objects. After you have run a trace
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of data, you can format the data for printing or viewing. You can view the
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printer file only in the output queue.</p>
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<div class="section"><p>Communication trace options run under system service tools (SST).
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SST lets you use the configuration objects while communications trace is active.
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You can trace and format data for any of the communications types that you
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can use in a distributed database network.</p>
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</div>
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<div class="section"><p>You can run the <span class="keyword">iSeries™</span> communications
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trace from any display that is connected to the server. Anyone with a special
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authority (SPCAUT) of *SERVICE can run the trace on <span class="keyword">iSeries server</span>.
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Communications trace supports all line speeds. </p>
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</div>
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<div class="section"><p>You should use communications trace in the following situations:
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</p>
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<ul><li>The problem analysis procedures do not supply sufficient information about
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the problem.</li>
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<li>You suspect that a protocol violation is the problem.</li>
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<li>You suspect a line noise to be the problem.</li>
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<li>The error messages indicate that there is a Systems Network Architecture
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(SNA) bind problem.</li>
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</ul>
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<p>You must have detailed knowledge of the line protocols that you use
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to correctly interpret the data that is generated by a communications trace.
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For information about interpreting DRDA<sup>®</sup> data streams, see <a href="rbal1anrwtr.htm#rbal1anrwtr">Example: Analyze the RW trace data</a>.</p>
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</div>
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<div class="section"><p>Whenever possible, start the communications trace before varying
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on the lines. This gives you the most accurate sample of your line as it varies
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on.</p>
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</div>
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<div class="section"><p>To run an APPC trace and to work with its output, you have to
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know on what line, controller, and device you are running.</p>
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</div>
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<div class="section"><p>To format and avoid unwanted data in the output of a TCP/IP trace,
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you can specify the IP addresses of the source and application servers (ASs).
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Sometimes it is sufficient to just specify the port number instead, which
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is easier. </p>
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</div>
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<div class="section"><p>The following commands start, stop, print, and delete communications
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traces: </p>
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<dl><dt class="dlterm"><a name="rbal1standardtrace__max"><!-- --></a><span class="cmdname">Start Communications Trace (STRCMNTRC)</span> command</dt>
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<dd>Starts a communications trace for a specified line or network interface
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description. Specify *MAX for value of Beginning bytes in Number of bytes
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to trace parameter. A communications trace continues until you run the <span class="cmdname">End
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Communications Trace (ENDCMNTRC)</span> command.</dd>
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<dt class="dlterm"><span class="cmdname">End Communications Trace (ENDCMNTRC)</span> command</dt>
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<dd>Ends the communications trace running on the specified line or network
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interface description.</dd>
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<dt class="dlterm"><span class="cmdname">Print Communications Trace (PRTCMNTRC)</span> command</dt>
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<dd>Moves the communications trace data for the specified line or network
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interface description to a spooled file or an output file. Specify *YES for
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the format SNA data only parameter.</dd>
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<dt class="dlterm"><span class="cmdname">Delete Communications Trace (DLTCMNTRC)</span> command</dt>
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<dd>Deletes the communications trace for a specified line or network interface
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description.</dd>
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</dl>
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</div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rbal1fndlcdd.htm">Find your line, controller, and device descriptions</a></strong><br />
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Use the <span class="cmdname">Work with Configuration Status (WRKCFGSTS)</span> command
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to find the controller and device under which your application server job
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starts.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal1commt.htm" title="If you get a message in the CPF3Exx range or the CPF91xx range when using Distributed Relational Database Architecture (DRDA) to access a distributed relational database, you should run a communications trace.">Communications trace</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../books/sc415406.pdf " target="_blank">Communications Management PDF</a></div>
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<div><a href="../cl/dltcmntrc.htm">Delete Communications Trace (DLTCMNTRC) command</a></div>
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<div><a href="../cl/endcmntrc.htm">End Communications Trace (ENDCMNTRC) command</a></div>
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<div><a href="../cl/prtcmntrc.htm">Print Communications Trace (PRTCMNTRC) command</a></div>
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<div><a href="../cl/strcmntrc.htm">Start Communications Trace (STRCMNTRC) command</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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