Subject: Re: [RFC iproute2] sch_red: TC_RED_HARDDROP

From: Stephen Hemminger <[email-masked]>
Date: Wed, 30 Nov 2011 14:36:42 -0800

On Wed, 30 Nov 2011 21:25:49 +0100
Eric Dumazet <[email-masked]> wrote:

> Hi Thomas
> 
> In 2005, TC_RED_HARDDROP kernel support was added to RED and GRED
> (commit bdc450a0bb1 [PKT_SCHED]: (G)RED: Introduce hard dropping), but
> current iproute2 doesnt have user land support.
> 
> Is there some patch waiting somewhere, or should we :
> 
> - Remove kernel support, since nobody uses it.
> 
> - Add iproute2 support.

(Almost) nobody uses RED because they can't figure it out.
According to Wikipedia, VJ says that: 
 "there are not one, but two bugs in classic RED."

But if flag is present, then Thomas should have sent a patch, might have
been lost, that was pre-patchwork days.