I have recently been tasked with designing a rebuild of an existing .NET web application that currently uses a third-party company to handle large file transfers (as big as 50Gb).
Currently, the .NET app depends on a .JAR (Java Applet) provided by this third-party which is called up inside of an iFrame and exposes the appropriate file-system interaction for selecting entire directories for upload and so forth.
I realize that so far all of this is possible using some combination of .NET networking classes (ftp) and Flash or Silverlight for client access.
I have been told that the reason that the third-party plugin is so special is that it uses UDP protocol so that if an upload or download is interrupted, it can be resumed later right where it left off. I have also been told that the third-party tool suite allows the IT folks to throttle bandwith (I don’t even know what that means) and do a couple of other cool things.
Assuming that we will use the latest version of C# and and the .NET framework (4.0), is it reasonably possible to replicate this UDP-based behavior? By reasonable, I mean could it be accomplished in less than, say, 240 dev hours.
Please note that the rebuilt app will ideally use all Microsoft technologies (including Silverlight for client access) and will run on Azure.