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From: Kevin Darbyshire-Bryant <kevin@darbyshire-bryant.me.uk>
To: <cake@lists.bufferbloat.net>
Subject: Re: [Cake] [lede-project/source] Add support for cake qdisc (#72)
Date: Wed, 1 Jun 2016 11:20:18 +0100	[thread overview]
Message-ID: <574EB6E2.2020006@darbyshire-bryant.me.uk> (raw)
In-Reply-To: <574EB550.5020005@taht.net>



On 01/06/16 11:13, Dave Täht wrote:
> I still think squashing is very important, and essentially required by
> several rfcs.




I'm now wondering if we're falling into a terminology trap. The original 
tc/cake implementation of 'squash' was effectively to use 'besteffort' 
(ie diffserv1) ie. ignore the DSCP bits *and* to clear the DSCP bits on 
outgoing 'wash'.

I (foolishly?) split out the DSCP washing feature to a separate 
controllable flag - wash/nowash*

Thus it is at present possible to use the DSCP bits for diffserv4/5 
differentiation on ingress to the queue but to clear those DSCP bits for 
egress purposes.

  reply	other threads:[~2016-06-01 10:20 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <lede-project/source/pull/72@github.com>
     [not found] ` <lede-project/source/pull/72/c222782884@github.com>
2016-06-01 10:02   ` Kevin Darbyshire-Bryant
2016-06-01 10:13     ` Dave Täht
2016-06-01 10:20       ` Kevin Darbyshire-Bryant [this message]
2016-06-01 10:52         ` moeller0
2016-06-01 11:20           ` Toke Høiland-Jørgensen
2016-06-01 11:41             ` moeller0
2016-06-01 11:47               ` Kevin Darbyshire-Bryant
2016-06-01 11:57                 ` Sebastian Moeller
2016-06-01 12:25                   ` Benjamin Cronce
2016-06-01 13:09                     ` Kevin Darbyshire-Bryant
2016-06-01 13:51                     ` Jonathan Morton
2016-06-01 15:19                       ` moeller0
2016-06-01 20:22                         ` David Lang
2016-06-01 15:26                       ` Dave Taht

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