On Monday, December 01, 2008 travis kalanick wrote: > If uTorrent's UDP implementation results in a more aggressive > TCP, there is certainly the possibility that uTorrent could > create massive FAIL on the Internets. > > Anyone who's created/tuned a distributed-UDP-based-TCP-like > protocol (e.g. David Barrett, Matthew Kaufman, Alex Pankrotov) > knows the delicate nature of how distributed-TCP-in-UDP works, > and how it can go very haywire with just a couple of well- > intentioned tweaks.
Most certainly; but my question was, is there any evidence of this protocol "going very haywire", or the article just paints the worst possible scenario, sort of like telling that the asteroid can destroy all life on Earth? I mean, it sure can - but where's the asteroid? Best wishes - S.Osokine. 1 Dec 2008. ________________________________ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of travis kalanick Sent: Monday, December 01, 2008 1:47 PM To: theory and practice of decentralized computer networks Subject: Re: [p2p-hackers] Did uTorrent add NAT traversal? If uTorrent's UDP implementation results in a more aggressive TCP, there is certainly the possibility that uTorrent could create massive FAIL on the Internets. Anyone who's created/tuned a distributed-UDP-based-TCP-like protocol (e.g. David Barrett, Matthew Kaufman, Alex Pankrotov) knows the delicate nature of how distributed-TCP-in-UDP works, and how it can go very haywire with just a couple of well-intentioned tweaks. uTorrent is so widely distributed and so massively utilized for download activity, that if this update goes out in the defacto uTorrent client (new installs and auto-updates and the like), we should hope that there is a slow steady deployment to make sure there aren't serious problems with "crowding out" in the protocol. If there is a massive auto-update, and a massive FAIL that follows, we should all expect our uTorrent apps to be disabled by ISP, auto-downgraded by Bittorrent Inc., etc. until a TCP friendly protocol is deployed. Travis On Mon, Dec 1, 2008 at 1:25 PM, Serguei Osokine <[EMAIL PROTECTED]> wrote: On Monday, December 01, 2008 David Barrett wrote: > Saw uTorrent switched to UDP: > > http://www.theregister.co.uk/2008/12/01/richard_bennett_utorrent_udp/ Is it just me, or this article is really unnecessarily alarmist? Richard Bennett describes the situation as if there is no congestion control in the UDP file transfer protocol used by uTorrent, which I find a bit hard to believe. Is this really the case? I cannot imagine how the data transfer protocol without any congestion control can possibly exist - the only issue seems to be how aggressive would it be in comparison with TCP, not whether it would melt down the Internet or not. But he sounds like the sky will be falling any moment now; is this position substantiated by any objective evidence? Best wishes - S.Osokine. 1 Dec 2008. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Barrett Sent: Monday, December 01, 2008 12:10 PM To: theory and practice of decentralized computer networks Subject: [p2p-hackers] Did uTorrent add NAT traversal? Saw uTorrent switched to UDP: http://www.theregister.co.uk/2008/12/01/richard_bennett_utorrent_udp/ Did they also add simultaneous connect NAT traversal? That'd require a tracker change, I assume. (Though they could probably do it through the DHT.) -david _______________________________________________ p2p-hackers mailing list p2p-hackers@lists.zooko.com http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list p2p-hackers@lists.zooko.com http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list p2p-hackers@lists.zooko.com http://lists.zooko.com/mailman/listinfo/p2p-hackers
