And there are scenarios where you want to reimplement TCP, after thoroughly understanding TCP. Yes, precisely; thorough understanding, then have a whack at onl

And there are scenarios where you want to reimplement TCP, after thoroughly understanding TCP. Yes, precisely; thorough understanding, then have a whack at only picking pieces of TCP you want. In my (limited) experience, I've almost always seen people with less knowledge of network programming than I have (!) try to reimplement most of TCP on top of UDP once they realize UDP was not what they wanted.