Well, right, is not it? After all, who needs, say, 99.9% of the file? Of course, but now every Torrent-client knows exactly what he should get in by injection and, if necessary, ask for the missing. And they will go to the UDP and will increase the speed? Beautiful! Do not rush. One of the advantages of TCP – is its ability to report on the shortfall of data, and in case of a major loss – reduce speed to avoid overloading the network. Read additional details here: Mashable. UDP has nothing like that: he will continue to send, even if the line is clogged completely. If the transmission speed of the network decreases, the TCP-program (mail, web, etc.) slowed down and UDP-applications will scald recklessly, if only finished firing. Did BitTorrent is not a solid part of the modern Internet traffic? In this case, the transition will slow down! Potentially – yes. Forced to choose between UDP, zapolonyayuschim network, and a slowdown in web, mail and other important services, Internet service providers will inevitably reduce the priority of UDP-traffic. This, in turn, lead to a slowdown of VoIP telephony, video game connections video broadcasts, and other UDP-applications.
Awful! Can we somehow make a little trickier BitTorrent? Over this and beat the developers UDP: they want to add protocol specific functions of TCP (in particular, obstruction of control network). Test integrity of the UDP delivery is not needed, but to define cross-channel protocol learns better than TCP, and benefit from it all. Will torrents faster? Maybe. However, if the developers BitTorrent protocol will achieve its goal by reducing the amount of needlessly expended Internet traffic, and accelerate the entire Internet. Do not forget that the TCP for 35 years, he was "grown", and if the new UDP-protocol BitTorrent (UTP) to overcome, it would be something! A small but valuable bonus: TCP-nasty messages forcibly closing connections BitTorrent-mailed to some of my ISP (ComCast, this is about you!), with UDP stop working. Hooray! I ran to check … Do not hurry: While the entire system in beta testing. It appears in the following the official version of the client BitTorrent; also need to make this version has been installed on other computers with which you exchange files. BitTorrent clients are not so many, and most users will have to wait for the next update cycle distributions (and with them, and applications). So it turns out that download the updated distributivchik through UTP we will be able not earlier than six to nine months.