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Legitimate P2P to be unclogged

A service developed for ISPs and content distributors promises to make it easier to distribute software packages and large movie files over the Web
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Written by David Meyer, Freelance reporter on

High-definition movie files and large software downloads could find their way more quickly to the end user, thanks to a new platform which its manufacturer claims could revolutionise legitimate peer-to-peer (P2P) traffic.

Velocix, described by vendor CacheLogic as "the world's first multi-protocol P2P-based media delivery platform", is a system of local caching, whereby popular high-volume files are stored at various locations relatively close to where they are needed.

The idea is that agreements could be signed with content distributors, such as movie studios or software vendors, and Internet service providers (ISPs), enabling large files to be stored with Velocix and distributed locally when requested. For very large files, this could cut transmission costs for the ISPs significantly. This could also encourage customers to download copyright-protected content rather than unlicensed versions.

However, no such agreements have been announced yet by CacheLogic.

"The content world has become increasingly interested in P2P from a legitimate distributive perspective," CacheLogic's chief technology officer Andrew Parker told ZDNet UK on Friday.

He claimed the primary reason for this was cost reduction, as P2P "creates economics that are far closer to broadcast" than streaming video over the Internet.

The current problem is that content distributors such as Warner Brothers or Universal sell, for example, a television show at a price not much higher than they charge for a music track. Because a television show — especially if it is in high definition — is much larger than a music track, the customer's ISP has to pay much more to transmit it.

"This is one of the things that has really held back the delivery of video over the Internet," said Parker, who claimed Velocix would provide "a hybrid of traditional P2P systems and content distribution networks, offering the scalability and cost benefit of P2P delivery but with the reliability and consistency of a content distribution network".

By enabling ISPs to "keep temporary copies of the most frequently requested content on their network", Velocix could possibly make downloads faster than if they came directly from the content distributors themselves, but it remains unclear whether there would be any speed benefit over other P2P services

Content distributors could also be reluctant to take up such a service until they recognise the impact of ISP' capacity limitations, as "a lot of them are very new to this kind of P2P content distribution and delivery market", according to Ovum analyst Jonathan Arber.

"I think, for the ISPs, it's very attractive, but my feeling at the moment is perhaps the content owners will look at it and say it's a nice idea but why do we need to bother," Arber told ZDNet UK on Friday, adding: "At the moment their services are only seeing very slow uptake. Mass-market usage will create the problems that this solution is designed to remove".

Arber added that a service such as Velocix could theoretically enable ISPs to further segment their services, by "prioritising packages to high-usage users who are using huge amounts of media content".

It is also thought that the service would be useful for software distributions and large security patches, such as the Centrino patch issued by Intel last week.

Several open source companies already use the BitTorrent P2P service to distribute their packages around the Web, including OpenOffice, SuSE and Ubuntu. This allows a user to download a single file from many different places at the same time, which speeds up the process.

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