nanog mailing list archives
Re: Can P2P applications learn to play fair on networks?
From: Joe Provo <nanog-post () rsuc gweep net>
Date: Mon, 22 Oct 2007 06:56:03 -0400
On Sun, Oct 21, 2007 at 10:45:49PM -0400, Geo. wrote: [snip]
Second, the more people on your network running fileshare network software and sharing, the less backbone bandwidth your users are going to use when downloading from a fileshare network because those on your network are going to supply full bandwidth to them. This means that while your internal network may see the traffic your expensive backbone connections won't (at least for the download). Blocking the uploading is a stupid idea because now all downloading has to come across your backbone connection.
As stated in several previous threads on the topic, the clump of p2p protocols in themselves do not provide any topology or locality awareness. At least some of the policing middleboxes have worked with network operators to address the need and bring topology-awareness into varous p2p clouds by eating a BGP feed to redirect traffic on-net (or to non-transit, or same region, or latency class or ...) when possible. Of course the on-net has less long-haul costs, but the last-mile node congestion is killer; at least lower-latency on-net to on-net trafsfers should complete quickly if the network isn't completely hosed. One then can create a token scheme for all the remaining traffic and prioritize, say, the customers actually downloading over those seeding from scratch. -- RSUC / GweepNet / Spunk / FnB / Usenix / SAGE
Current thread:
- Re: Can P2P applications learn to play fair on networks?, (continued)
- Message not available
- Re: Can P2P applications learn to play fair on networks? Adrian Chadd (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Geo. (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Joe Greco (Oct 21)
- [admin] Re: Can P2P applications learn to play fair on networks? and Re: Comcast blocking p2p uploads Alex Pilosov (Oct 21)
- Re: [admin] Re: Can P2P applications learn to play fair on networks? and Re: Comcast blocking p2p uploads Randy Bush (Oct 21)
- [admin] Re: Can P2P applications learn to play fair on networks? and Re: Comcast blocking p2p uploads Alex Pilosov (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Geo. (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Jim Popovitch (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Joel Jaeggli (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Geo. (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Joe Provo (Oct 22)
- RE: Can P2P applications learn to play fair on networks? michael.dillon (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Florian Weimer (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Sean Donelan (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Brandon Galbraith (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Roland Dobbins (Oct 21)
- Re: Can P2P applications learn to play fair on networks? Perry Lorier (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Adrian Chadd (Oct 22)
- NNTP vs P2P (Re: Can P2P applications learn to play fair on networks?) Jeroen Massar (Oct 22)
- RE: Can P2P applications learn to play fair on networks? Geo. (Oct 22)
- Re: Can P2P applications learn to play fair on networks? Jim Popovitch (Oct 21)