Re: TCP window based shaping

Linux Advanced Routing and Traffic Control

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On Tue, 2005-03-15 at 15:24 +0000, Ed Wildgoose wrote:
> >In my current implementation at home, I use TC/HTB rules to priortise
> >outgoing acks. This definately helps esp when doing huge Linux ISO dl's
> >through Bittorrent.
> >
> >Why delay Acks?? Just because you want to delay/make/simulate the normal
> >TCP behaviour of making the window smaller?? 
> >  
> >
> 
> 
> ...because "we" don't want bittorrent to go faster....

Hmm.. I see your point in that by ack the BT packets, they will come in
faster.

> 
> The goal is to slow things down, not speed them up.  Granted though that 
> prioritising acks is useful up until the client is using the desired 
> amount of bandwidth, after that we want to slow them down again

Until a better method of priotising/delayin the ACKs, I guess I will
have to content with priotising ACKs so that web-requests ACKs will
still get through faster.

Hmm.. didn't BRam Cohen come out with BT 4.0 which is supposed to mark
BT packets as "BULK"?


> Ed W

-- 
Ow Mun Heng
Gentoo/Linux on DELL D600 1.4Ghz 
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Neuromancer 15:43:17 up 6:14, 6 users, load average: 0.30, 0.41, 0.27 


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