JANUS TCPLOG: Difference between revisions

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==Syntax==
==Syntax==
<p class="syntax"> JANUS TCPLOG ddname
<p class="syntax">JANUS TCPLOG ddname
</p>
</p>


Where: ''ddname'' is the DDname of the sequential dataset to contain the log.  
Where: ''ddname'' is the DDname of the sequential dataset to contain the log.  


One suggested use for a file of captured streams is to provide "playback" for customer-written applications that simulate real workloads during testing of new system or application code.  
==Usage notes==
<ul>
<li>One suggested use for a file of captured streams is to provide "playback" for customer-written applications that simulate real workloads during testing of new system or application code.  


The format of the log file is shown below. All values are in binary format except where indicated.
<li>The format of the log file is shown below. All values are in binary format except where indicated.


<table class="syntaxTable">
<table class="syntaxTable">
<tr><th>d.Bytes</th>
<tr><th>Bytes</th>
<td>d.Description</td></tr>
<th>Description</th></tr>
 
<tr><th>0-1</th>
<tr><th>0-1</th>
<td>Record length</td></tr>
<td>Record length</td></tr>
<tr><th>2-3</th>
<tr><th>2-3</th>
<td>Unused</td></tr>
<td>Unused</td></tr>
<tr><th>4-11</th>
<tr><th>4-11</th>
<td>TCP unique connection number</td></tr>
<td>TCP unique connection number</td></tr>
<tr><th>12-15</th>
<tr><th>12-15</th>
<td>Record number</td></tr>
<td>Record number</td></tr>
<tr><th>16-23</th>
<tr><th>16-23</th>
<td>TOD value (in STCK units)</td></tr>
<td>TOD value (in STCK units)</td></tr>
<tr><th>24-27</th>
<tr><th>24-27</th>
<td>Remote IP address</td></tr>
<td>Remote IP address</td></tr>
<tr><th>28-31</th>
<tr><th>28-31</th>
<td>Local IP address</td></tr>
<td>Local IP address</td></tr>
<tr><th>32-33</th>
<tr><th>32-33</th>
<td>Remote port number</td></tr>
<td>Remote port number</td></tr>
<tr><th>34-35</th>
<tr><th>34-35</th>
<td>Local port number</td></tr>
<td>Local port number</td></tr>
<tr><th>36-36</th>
<tr><th>36-36</th>
<td>Direction (EBCDIC character):
<td>Direction (EBCDIC character):
Line 43: Line 54:
</ul>
</ul>
</td></tr>
</td></tr>
<tr><th>37-37</th>
<tr><th>37-37</th>
<td>Unused</td></tr>
<td>Unused</td></tr>
<tr><th>38-39</th>
<tr><th>38-39</th>
<td>Length of binary data</td></tr>
<td>Length of binary data</td></tr>
<tr><th>40-n</th>
<tr><th>40-n</th>
<td>Binary data (ASCII characters)
<td>Binary data (ASCII characters)
</td></tr></table>
</td></tr></table>
</ul>


The TCPLOG subcommand is available as of ''[[Sirius Mods]]'' Version 7.2. .im jtrace
==See also==
 
<ul>
==References==
<li>[[List of Janus commands]]
</ul>


See: [[List of Janus commands]]
[[Category:Janus commands|JANUS TCPLOG]]
[[Category:Janus commands|JANUS TCPLOG]]

Latest revision as of 20:19, 16 April 2013

Capture Janus port traffic

The JANUS TCPLOG subcommand lets you capture all input and output streams for a particular Janus port. The captured streams are written to a sequential file.

Syntax

JANUS TCPLOG ddname

Where: ddname is the DDname of the sequential dataset to contain the log.

Usage notes

  • One suggested use for a file of captured streams is to provide "playback" for customer-written applications that simulate real workloads during testing of new system or application code.
  • The format of the log file is shown below. All values are in binary format except where indicated.
    Bytes Description
    0-1 Record length
    2-3 Unused
    4-11 TCP unique connection number
    12-15 Record number
    16-23 TOD value (in STCK units)
    24-27 Remote IP address
    28-31 Local IP address
    32-33 Remote port number
    34-35 Local port number
    36-36 Direction (EBCDIC character):
    • R (received)
    • S (sent)
    37-37 Unused
    38-39 Length of binary data
    40-n Binary data (ASCII characters)

See also