[Bloat] About LEDBAT, µTP and BitTorrent

Luca Dionisi luca.dionisi at gmail.com
Fri Feb 4 04:55:33 EST 2011


On Fri, Feb 4, 2011 at 10:36 AM, Juliusz Chroboczek <jch at pps.jussieu.fr> wrote:
> Hi,
>
> In his series of articles, Jim has mostly been concerned about
> router-based solutions to the delay issues.  As you know, people have
> also been working on end-to-end solutions, mostly within the framework
> of TCP (people have already mentioned TCP-Vegas on this list).  There's
> a couple things I'd like to add.

I think that the 2 things have to be carried on independently, because
the end-to-end solutions are not a real solution to the bufferbloat.
The problem is that one cannot make sure that end users will act
fairly, by adjusting their sending rate.
The only way to do this is dropping packets, so that they are obliged
to send again.
If the bottleneck is on a router that is not in your house, you can
enable any congestion control solution in your nodes and you will in
no way experience improved RTT, if other flows from other users do not
act fairly and pass through the same bottleneck.

Am I wrong with my reasoning?



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