Re: [RAI] Draft on P2P architectures
Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com> Mon, 04 May 2009 12:38 UTC
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Date: Mon, 04 May 2009 15:39:32 +0300
From: Gonzalo Camarillo <Gonzalo.Camarillo@ericsson.com>
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To: Enrico Marocco <enrico.marocco@telecomitalia.it>
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Subject: Re: [RAI] Draft on P2P architectures
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Hi Enrico, thanks for your comments. Yes, you are right; that sentence could be misinterpreted. What about changing it to this one instead? "Note, however, that a particular swarm where most endpoints were infrastructure nodes that had the complete file from the beginning and, thus, acted all the time as seeders could not be strictly considered a P2P system because most endpoints would only be providing services, not requesting them." Cheers, Gonzalo Enrico Marocco wrote: > Hi Gonzalo, > > the draft seems in pretty good shape and I think it should be published > as soon as possible to the benefit of the whole community. However, I'm > not sure I totally agree with the last sentence of the newly added > section 2.4, "Applying the P2P Definition to BitTorrent": > > Note, however, that a particular swarm where most endpoints were > seeders could not be strictly considered a P2P system because most > endpoints would only be providing services, not requesting them. > > In the common case a seeder is a peer that has completed the download, > but still has not uploaded enough to reach a decent share ratio. So, the > fact that a swarm has a majority of seeders is more likely to indicate > that consumption of resources is significantly faster than provision > (either because of asymmetry in uplink and downlink bandwidth, or simply > because offer exceeds demand) and not necessarily that the peers are > providing the service without getting anything back -- they have already > got it. > > Enrico > > Gonzalo Camarillo wrote: >> Hi Dan, >> >> thanks for your comments. Answers inline: >> >> Dan Wing wrote: >>>> the IAB has just submitted the following draft: >>>> >>>> http://www.ietf.org/internet-drafts/draft-iab-p2p-archs-00.txt >>>> >>>> Comments are welcome. >>> Please add Gnutella, BitTorrent, and Skype to section 2. I >>> noticed BitTorrent isn't mentioned in the document at all. >> I have added BitTorrent to Section 2. However, I would not like to have >> too many examples in that section. Since Skype and Gnutella were already >> mentioned somewhere else in the document, I have not added new >> subsections with them in Section 2. >> >>> You might also mention Octoshape's don't-look-under-the-covers P2P video >>> streaming application, >>> http://arstechnica.com/web/news/2009/02/cnn-p2p-video-streaming-tech-raises-qu >>> estions.ars >>> >> I have added references to Octoshape. >> >>> end of Section 5.3, >>> traditional SIP, which relays on a rendezvous server infrastructure. >>> ^^^^^^ >>> relies >> Fixed. >> >>> Section 6, >>> we have discussed a number of >>> perfectly legitimate applications that have been implemented using >>> P2P. >>> >>> I would drop "perfectly" from that sentence. (Same phrase is in Section 1). >>> (Are there imperfectly legitimate applications?) >> I would like to stress the fact that there are *fully* legitimate. If >> you have a suggestion to give more emphasis to the sentence without >> using "perfectly", let me know. >> >>> To your list of legitimate uses of p2p technology in Section 6, you might also >>> consider adding the "unofficial release" by Nine Inch Nails of 400Gb of >>> time-synchronized multiple-camera HD video footage from three concerts using >>> BitTorrent, http://forum.nin.com/bb/read.php?52,378166. The trackers are on >>> nin.com's own website. >> Since this is yet another example of content distribution using >> bittorrent, I do not think we need to add it to the document... but >> thanks for the reference anyway. It is interesting! >> >> Thanks for your comments, >> >> Gonzalo >> _______________________________________________ >> RAI mailing list >> RAI@ietf.org >> https://www.ietf.org/mailman/listinfo/rai
- [RAI] Draft on P2P architectures Gonzalo Camarillo
- Re: [RAI] Draft on P2P architectures Dan Wing
- Re: [RAI] Draft on P2P architectures Dan York
- Re: [RAI] Draft on P2P architectures Gonzalo Camarillo
- Re: [RAI] Draft on P2P architectures Gonzalo Camarillo
- Re: [RAI] Draft on P2P architectures Dan Wing
- Re: [RAI] Draft on P2P architectures Enrico Marocco
- Re: [RAI] Draft on P2P architectures Gonzalo Camarillo
- Re: [RAI] Draft on P2P architectures Enrico Marocco
- Re: [RAI] Draft on P2P architectures Gonzalo Camarillo