title: How do I calculate network speed: either "goodput" Bandwidth, or real Bandwith?
body: <p>I'm trying to determine the latency and bandwidth between the server and various clients in a multi-tier system.  I believe the easiest item to get is the "goodput" or the effective Application-layer rate, but the latency is a bit harder to get at, yet harder still is the true bandwidth that includes "window size" and other technical factors.</p>
  
  <p>I'm looking for either a description of how to most accurately calculate this from either the client or server perspective... as long as I am able to run the server on Azure.</p>
  
  <p>I'm open to (but not limited to) using IIS to stream a series of bytes, a TCP-based WCF service, but the solution needs to be .NET based.</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>I added a bounty to this question since there is so much information out there... and yet much seems to conflict each other, or have missing data, especially in a .NET implementation.  I'm most interested in having 2 implementations C# or Silverlight.</p>
  
  <p>Some networking Gurus have said I need to take the "slow start" of TCP window size into consideration.  </p>