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SubjectRe: [PATCH net-next v2] tcp: Ensure DCTCP reacts to losses
On Thu, Apr 4, 2019 at 8:24 AM Tilmans, Olivier (Nokia - BE/Antwerp)
<> wrote:
> From: Koen De Schepper <>
> RFC8257 §3.5 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.

Acked-by: Neal Cardwell <>



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