[BitTorrent] Re: Bit Torrent Spec

guanying_wang guanying_wang at yahoo.com.cn
Sat Mar 5 03:27:11 EST 2005



--- In BitTorrent at yahoogroups.com, "thayerdhan" <thayerdhan at y...> wrote:
> 
> Hi,
> 
> I have been reading the BitTorrent spec I have a couple of questions:
> 
> 1. Does a client choke all peers in which it is not interested, i.e.,
> the only way to get a piece is by EXCHANGE (both client and selected
> peer have pieces of interest to each other)?
> 
> 2. If the above is true, the only way to get a piece upon joining the
> system would be from a seed, since none of the other peers would be
> interested in you, is this what happens?
> 
> The above would be correct from a game theoretic (selfish) point of
view.
> 
> Sorry if the question seems very basic, but I cannot find a definite
> answer to this in the "Incentive Build Robustness in Bit Torrent" or
> the protocol spec.
> 
> Thanks,
> Ineme

seems you are reading the paper, IMO optimistic unchoking is what you
want. peers select random peers for optimistic unchoking, so new
comers can get some blocks.

Guanying






 
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