title: iperf tool measure throughput server side or client
body: <p>From iperf man:
         iperf is a tool for performing network throughput measurements.  It can
         test either TCP or UDP throughput.  To perform an iperf test  the  user
         must establish both a server (to discard traffic) and a client (to gen-
         erate traffic).</p>
  
  <p>Basically you run iperf server at one end and iperf client at other end.
  My question is :
  suppose there is machine A and machine B and you run iperf server at Machine A and client at Machine B you get X number</p>
  
  <p>iperf server at Machine B and iperf client at Machine A, you get Y number.</p>
  
  <p>X and Y denotes the throughput. My question is X denotes which machine (A/B) throughput?</p>
  
  <p>If in case you say it is not machine specific and only denotes throughput between links, Why I should observe different throughput when I swap the client and server(Actually I have observed)?</p>
  
  <p>Thnx in Advance.</p>