netdev - Re: TCP packet size and delivery packet decisions

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Message-ID: <AANLkTik75BGz=csDKVRk+Ni9__MqXMpHeqi_sHniu09A@mail.gmail.com>
Date:	Tue, 7 Sep 2010 02:21:42 -0300
From:	ツ Leandro Melo de Sales <leandroal@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org
Subject: Re: TCP packet size and delivery packet decisions

On Tue, Sep 7, 2010 at 2:16 AM, David Miller <davem@...emloft.net> wrote:
> From: ツ Leandro Melo de Sales <leandroal@...il.com>
> Date: Tue, 7 Sep 2010 02:13:46 -0300
>
>> 192.168.0.70    192.168.0.34    [SYN, ACK] Seq=0 Ack=1 Win=78 Len=0 MSS=78
>
> Find out why this system is advertising a 78 byte window
> with no window scaling.
>

This is a embedded system implemented in a proprietary hardware that I
can send TCP commands to turn on/off relays. It will be very difficult
to find the reason for this behaviour. Since it needs to receive very
small data, probably it is not necessary to scaling window.

Leandro.
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