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Date:	Mon, 12 Jan 2015 11:48:20 -0500
From:	Neal Cardwell <>
To:	Eric Dumazet <>
Cc:	Sébastien Barré <>,
	David Miller <>,
	Yuchung Cheng <>,
	Netdev <>,
	Gregory Detal <>,
	Nandita Dukkipati <>
Subject: Re: [PATCH net-next v3] tcp: avoid reducing cwnd when ACK+DSACK is received

On Mon, 2015-01-12 at 10:30 +0100, Sébastien Barré wrote:
> With TLP, the peer may reply to a probe with an
> ACK+D-SACK, with ack value set to tlp_high_seq. In the current code,
> such ACK+DSACK will be missed and only at next, higher ack will the TLP
> episode be considered done. Since the DSACK is not present anymore,
> this will cost a cwnd reduction.

Acked-by: Neal Cardwell <>

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