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Date: Thu, 04 Apr 2019 10:52:43 -0700 (PDT)
From: David Miller <davem@...emloft.net>
To: olivier.tilmans@...ia-bell-labs.com
Cc: koen.de_schepper@...ia-bell-labs.com, research@...briscoe.net,
brakmo@...com, fw@...len.de, borkmann@...earbox.net,
ycheng@...gle.com, ncardwell@...gle.com, edumazet@...gle.com,
agshew@...il.com, glenn.judd@...ganstanley.com,
kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2] tcp: Ensure DCTCP reacts to losses
From: "Tilmans, Olivier (Nokia - BE/Antwerp)" <olivier.tilmans@...ia-bell-labs.com>
Date: Thu, 4 Apr 2019 12:24:02 +0000
> RFC8257 ยง3.5 explicitly states that "A DCTCP sender MUST react to
> loss episodes in the same way as conventional TCP".
...
> This patch replace the clamping of alpha by setting ssthresh to
> half of cwnd for both fast retransmissions and RTOs, at most once
> per RTT. Consequently, the dctcp_clamp_alpha_on_loss module parameter
> has been removed.
Applied to 'net' and queued up for -stable, thanks.
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