Re: [tsvwg] path forward on L4S issue #16

"Holland, Jake" <jholland@akamai.com> Wed, 17 June 2020 21:12 UTC

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From: "Holland, Jake" <jholland@akamai.com>
To: Ingemar Johansson S <ingemar.s.johansson=40ericsson.com@dmarc.ietf.org>, "Rodney W. Grimes" <ietf@gndrsh.dnsmgr.net>, Jonathan Morton <chromatix99@gmail.com>, Sebastian Moeller <moeller0@gmx.de>
CC: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>, "tsvwg@ietf.org" <tsvwg@ietf.org>
Thread-Topic: [tsvwg] path forward on L4S issue #16
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Date: Wed, 17 Jun 2020 21:12:12 +0000
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Subject: Re: [tsvwg] path forward on L4S issue #16
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Hi Ingemar,

One clarification:

´╗┐On 6/17/20, 9:27 AM, "Ingemar Johansson S" <ingemar.s.johansson=40ericsson.com@dmarc.ietf.org> wrote:
> So far I see only one firm evidence that RFC3168 AQMs are deployed and
> enabled and these are related to the OpenWrt project, manifested in a few
> upgradeable devices (and some not upgradeable) that can be bought in retail
> stores. The rest is unconfirmed.

If you're referring to the observations I sent, they are not linked to
OpenWRT.  I was looking at Akamai production traffic that saw ECE marks
while delivering content to end users.

Although many of the marking devices were likely CPE devices deployed
by individual end users, there's reason to believe that several ISPs
(what looks like a growing number) have some kind of managed deployment
that has a much greater prevalence within their ASN than can be easily
explained by individual users installing a custom CPE.

I don't have any information on whether the marking devices inside these
wider deployments within specific ASNs are predominantly CPE devices or
whether they're one of the many routers or access devices that support
CE-marking that they have now chosen to enable, after historically
running it disabled.  (This is not implausible, because the amount of
traffic that will respond to the marks has changed substantially in the
last few years.)

HTH.

Best regards,
Jake