HTTP over TCP was devised to guarantee data in an environment when the web was a small part of the traffic. With the rise of the Internet and the vast expansion of memory and horsepower in everything from phones to servers, some of the constraints on protocols can be eased, giving us some new and potentially much faster options. We are close to getting HTTP 2.0, writes Jim O'Reilly, which will speed up connections considerably and break the logjams caused by a single request error. As such, it addresses the part of the problem related to failures to an extent, but it is still bedeviled by round-trip time (RTT) delays. Fujitsu Ltd.(Tokyo: 6702; London: FUJ; OTC: FJTSY) and Google (Nasdaq: GOOG) have proposed going beyond this -- replacing TCP with a modified UDP.