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Date:	Thu, 22 Nov 2007 11:07:20 +0900
From:	"Ryousei Takano" <>
Cc:	"Denys Fedoryshchenko" <>,
	"Jarek Poplawski" <>,,
Subject: Re: HTB/HSFC shaping precision

Hi jamal and denys,

> > One message later, thats what i dreamed about :-)
> > Subject: [RFC][PATCH 1/3] NET_SCHED: PSPacer qdisc module
> > On website they have very good explanation...
> >
> That looks interesting - without reading the papers a few questions are
> developing in my brain cells; for example it looks very similar to what
> the chelsio NICs claim to do (which could be a good thing for TCP).
> Whenever i see someone implementing something in hardware, i always get
> flushes of "patents".
Thanks for looking our web page.

PSPacer has quite accurate shaping precision.
The point is that special hardware like the chelsio NICs is not required of it.
PSPacer uses a gap packet, whose format is IEEE 802.3x pause frame,
to control the interval between outgoing packets.
As far as I know, it is a unique approach.

Best Regards,
Ryousei Takano
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