title: Assistance viewing tcptrace output graphs using xplot
body: <p>I am using tcptrace to get connection statistics from a tcpdump file.</p>
  
  <pre><code>tcpdump -i any -nn -S -e -s 1514 -v port 4343 -w sink.cap
  tcptrace -G sink.cap &gt; tcptrace.txt
  </code></pre>
  
  <p>Tcptrace generates graphs in <strong>.xpl</strong> format. I am having trouble in viewing these graphs using <strong>xplot</strong>. When I run</p>
  
  <pre><code>xplot a2b_tput.xpl
  xplot a2b_tsg.xpl
  </code></pre>
  
  <p>it throws me the following error messages.</p>
  
  <ul>
  <li>xplot: invalid data for 2-dim stream</li>
  <li>xplot: empty datastream</li>
  </ul>
  
  <blockquote>
    <p>dsriram@ubuntu:~/Desktop$ tcpdump --version; tcptrace -version; xplot -v <br>
    tcpdump version 4.0.0 <br>
    libpcap version 1.0.0 <br>
    <br>
    Version: Ostermann's tcptrace -- version 6.6.7 -- Thu Nov  4, 2004 <br>
      Compiled by 'buildd' at 'Sat Nov  7 22:53:46 UTC 2009' on machine 'rothera' <br>
    <br>
    X Datafile Plotter  V1.19 <br>
    Copyright (c) ICCE / Karel Kubat 1995. All rights reserved. <br>
    Another MegaHard production! <br></p>
  </blockquote>
  
  <ol>
  <li>I am wondering whether there are any
  compatibility issues.</li>
  <li>Am I missing some arguments in
  tcptrace/tcpdump/xplot commands to
  get a viewable graph?</li>
  <li>Are there any other tools available to 
  view.xpl files?</li>
  </ol>