netdev - Re: [PATCH net] tcp: Fix TLP implementation in case receive window limits send

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Message-ID: <CAB_+Fg69V2msVt3dr76VrgdYBOivjsRnvwBAuSWpi-v7Jkd+6Q@mail.gmail.com>
Date:	Wed, 24 Sep 2014 12:00:02 -0700
From:	Nandita Dukkipati <nanditad@...gle.com>
To:	Yuchung Cheng <ycheng@...gle.com>
Cc:	Itzcak Pechtalt <itzcak@...shnetworks.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net] tcp: Fix TLP implementation in case receive window
 limits send

> On Tue, Sep 23, 2014 at 9:28 AM, Itzcak Pechtalt
> <itzcak@...shnetworks.com> wrote:
>> From: Itzcak Pechtalt <itzcak@...shnetworks.com>
>>
>> TCP Tail loss probe (TLP) algorithm implementation has some problem.
>> According to paper (draft-dukkipati-tcpm-tcp-loss-probe-0 ):
>> In case recive window of receiver limits send of new packet in probe time than
>> a retransmit of last packet send should be done.
>>
>> Actually, return code from tcp_write_xmit is not checked and only RTO is
>> scheduled,
>> So, it will take more time for reovery in this case than without TLP.
>>
>> Signed-off-by: Itzcak Pechtalt <itzcak@...shnetworks.com>
> Acked-by: Yuchung Cheng <ycheng@...gle.com>
Acked-by: Nandita Dukkipati <nanditad@...gle.com>
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