netdev - Re: [PATCH next] dctcp: update cwnd on congestion event

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Date:   Tue, 15 Nov 2016 22:02:40 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     fw@...len.de
Cc:     netdev@...r.kernel.org, brakmo@...com, agshew@...il.com,
        glenn.judd@...ganstanley.com, daniel@...earbox.net
Subject: Re: [PATCH next] dctcp: update cwnd on congestion event

From: Florian Westphal <fw@...len.de>
Date: Mon, 14 Nov 2016 16:42:01 +0100

> draft-ietf-tcpm-dctcp-02 says:
> 
> ... when the sender receives an indication of congestion
> (ECE), the sender SHOULD update cwnd as follows:
> 
>          cwnd = cwnd * (1 - DCTCP.Alpha / 2)
> 
> So, lets do this and reduce cwnd more smoothly (and faster), as per
> current congestion estimate.
> 
> Cc: Lawrence Brakmo <brakmo@...com>
> Cc: Andrew Shewmaker <agshew@...il.com>
> Cc: Glenn Judd <glenn.judd@...ganstanley.com>
> Cc: Daniel Borkmann <daniel@...earbox.net>
> Signed-off-by: Florian Westphal <fw@...len.de>

Applied.