Re: [aqm] [Cerowrt-devel] [Bloat] ping loss "considered harmful"

Mikael Abrahamsson <swmike@swm.pp.se> Wed, 04 March 2015 19:45 UTC

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Date: Wed, 4 Mar 2015 20:45:45 +0100 (CET)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: dpreed@reed.com
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Cc: "aqm@ietf.org" <aqm@ietf.org>, "cerowrt-devel@lists.bufferbloat.net" <cerowrt-devel@lists.bufferbloat.net>, bloat <bloat@lists.bufferbloat.net>
Subject: Re: [aqm] [Cerowrt-devel] [Bloat] ping loss "considered harmful"
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On Wed, 4 Mar 2015, dpreed@reed.com wrote:

> DSCP should not be changed en route, so the receiver of the echo reply 
> should be able to know what DSCP was used on the reply packet.

Changing the DSCP bits by the ISP is definitely not unheard of, so don't 
count on it.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se