North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Google wants to be your Internet
On Sat, 20 Jan 2007 18:51:08 -0800 Roland Dobbins <[email protected]> wrote: > > > On Jan 20, 2007, at 6:14 PM, Mark Smith wrote: > > > It doesn't seem that the P2P > > application developers are doing it, maybe because they don't care > > because it doesn't directly impact them, or maybe because they don't > > know how to. If squid could provide a traffic localising solution > > which > > is just another traffic sink or source (e.g. a server) to an ISP, > > rather than something that requires enabling knobs on the network > > infrastructure for special handling or requires special traffic > > engineering for it to work, I'd think you'd get quite a bit of > > interest. > > I think there's interest from the consumer level, already: > > http://torrentfreak.com/review-the-wireless-BitTorrent-router/ > > It's early days, but if this becomes the norm, then the end-users > themselves will end up doing the caching. > Maybe I haven't understood what that exactly does, however it seems to me that's really just a bit-torrent client/server in the ADSL router. Certainly having a bittorrent server in the ADSL router is unique, but not really what I was getting at. What I'm imagining (and I'm making some assumptions about how bittorrent works) would be bittorrent "super" peer that : * announces itself as a very generous provider of bittorrent fragments. * selects which peers to offer it's generosity to, by measuring it's network proximity of those peers. I think bittorrent uses TCP, and it would seem to me that TCP's own round trip and througput measuring would be a pretty good source to measuring network locality. * This super peer could also have it's generosity announcements restricted to certain IP address ranges etc. Actually, thinking about it a bit more, for this device to work well it would need to somehow be inline with the bit torrent seed URLs, so maybe that wouldn't be feasible to have a server in the ISP's network do it. Still, if BT peer software was modified to take into account the TCP measurements when selecting peers, I think it would probably go a long way towards mitigating some of the traffic problems that P2P seems to be causing. Regards, Mark. -- "Sheep are slow and tasty, and therefore must remain constantly alert." - Bruce Schneier, "Beyond Fear"
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