Re: [aqm] [tcpm] TCP ACK Suppression

Joe Touch <touch@isi.edu> Sat, 10 October 2015 06:24 UTC

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To: David Lang <david@lang.hm>
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From: Joe Touch <touch@isi.edu>
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Cc: "tcpm@ietf.org" <tcpm@ietf.org>, touch@isi.edu, "mallman@icir.org" <mallman@icir.org>, "LAUTENSCHLAEGER, Wolfram (Wolfram)" <wolfram.lautenschlaeger@alcatel-lucent.com>, Greg White <g.white@CableLabs.com>, "aqm@ietf.org" <aqm@ietf.org>
Subject: Re: [aqm] [tcpm] TCP ACK Suppression
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On 10/9/2015 10:58 PM, David Lang wrote:
> RFC3449 doesn't completely address the current situation, but it
> provides a very good place to start, and it seems to me that the
> solitions it explores to address the conerns that it (and you) raise are
> actually being addressed pretty completely. There are still some areas
> to talk about (ECN interaction for example) and we wshould be talking
> about those issues rather than arguing that the proposal violates holy
> writ.

I'm OK with the recommendations for the endpoints to modify their ACK
behavior, but still am concerned that stripping out ACKs in the middle
of the network is problematic for a number of reasons, only some of
which are addressed in RFC3449 (which also recommends against deploying
them in the general Internet, so if that's your justification then it's
very clearly in direct opposition).

Joe