Just a quick thought, wouldn’t caching peer to peer end up being a massive cache full of illegal files and small amount are not worth caching

 

Eg user downloads a linux distro over peer to peer, uses 500mb+ which you cache but not many other people download this so its 500mb sitting there cached

Then you have a number of users downloading the latest song from a certain band, you cache this and it stops 100 downloads of a 3mb file

 

Plus sides being users get fast download speeds, ISP may save on international bandwidth

Downside is ISP needs terabytes of space for the files, most of which would be illegal and the ISP would be acting as an illegal file server?

 

As much as it would save on international bandwidth costs, the legalities around it would be massive

 

Philip

 

From: Cameron Kerr [mailto:ckerr@cs.otago.ac.nz]
Sent: Wednesday, 19 November 2008 3:42 p.m.
To: nznog@list.waikato.ac.nz
Subject: [nznog] Caching peer-to-peer traffic: a done thing?

 

I'm updating my labnotes for my network management paper regarding the use of proxy caches, and previously I have pointed to the possibility of caching peer-to-peer traffic as shown in the paper Deconstructing the Kazaa Network

 

http://portal.acm.org/citation.cfm?coll=GUIDE&dl=GUIDE&id=837393

 

I would like to know whether or not caching of peer-to-peer is something that ISPs actually do today, and if not why not. I imagine there are probably some interesting legal interactions, but I'm eager to find out how industry is moving in this field.

 

-- 

Cameron Kerr <ckerr@cs.otago.ac.nz>

Teaching Fellow, Computer Science, University of Otago

 

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