title: how to set data rate in case of tcp using ns2?
body: <p>I was trying to send ftp packets using tcp. which parameter in ns2 should i use to change the data rate of sender? i tried using the following to vary between 2 Mbps and 8 Mbps but seems like both are giving same results and does not vary the sender data rate.</p>
  
  <pre><code>$ftp($i) set rate_ 2Mb
  </code></pre>