Monday, April 04, 2005
Cerf at F2C
"The P2P principal is key to the Internet's success," says Vint Cerf, designer of TCP/IP, at Wednesday evening speech at the Freedom to Connect dinner... ISPs, he noted, probably do not want control over any layer, because with control comes responsibility. "I do not want to be the editor or policeman responsible for what users send over the network, but I am interested in how users are using the Internet." .... "Half of the traffic is Bit Torrent, and a lot of that may be video. It's symmetric. As a user downloads a piece of a file, that piece is made available to others. The effect is that a user is pushing as much traffic as they pull. This does a funny thing to companies that offer 'broadband service.' Cable modems are asymmetric. DSL is the same.".... Asked if there's anything he'd have done differently, Cerf said he'd have implemented IPv6 instead of IPv4. He also noted that end to end authentication would have prevented spam and some fraud problems, but that such authentication can be problematic, because you can authenticate the wrong thing at the wrong layer and thereby avoid solving your problem.
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