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From: David Miller <davem@davemloft.net>
To: leandroal@gmail.com
Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org
Subject: Re: TCP packet size and delivery packet decisions
Date: Mon, 06 Sep 2010 22:30:10 -0700 (PDT)	[thread overview]
Message-ID: <20100906.223010.173858342.davem@davemloft.net> (raw)
In-Reply-To: <AANLkTik75BGz=csDKVRk+Ni9__MqXMpHeqi_sHniu09A@mail.gmail.com>

From: ツ Leandro Melo de Sales <leandroal@gmail.com>
Date: Tue, 7 Sep 2010 02:21:42 -0300

> 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.

The small 78 byte window is why the sending system is splitting up the
writes into smaller pieces.

I presume that the system advertises exactly a 78 byte window because
this is how large the commands are.  But this is an extremely foolish
and baroque thing to do, and it's why you are having problems.

  reply	other threads:[~2010-09-07  5:29 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <AANLkTi=_heUejVf-wmEcKd910gVtpD7Hr=cZ_cs2Q8n9@mail.gmail.com>
2010-09-07  4:20 ` TCP packet size and delivery packet decisions ツ Leandro Melo de Sales
2010-09-07  4:36   ` Eric Dumazet
2010-09-07  5:13     ` ツ Leandro Melo de Sales
2010-09-07  5:16       ` David Miller
2010-09-07  5:21         ` ツ Leandro Melo de Sales
2010-09-07  5:30           ` David Miller [this message]
2010-09-07  6:02             ` ツ Leandro Melo de Sales
2010-09-07  6:09               ` Eric Dumazet
2010-09-07  7:16                 ` ツ Leandro Melo de Sales
2010-09-07  7:32                   ` Eric Dumazet
2010-09-08 14:01                     ` ツ Leandro Melo de Sales
2010-09-07 11:39             ` Eric Dumazet
2010-09-07 12:15               ` Ilpo Järvinen
2010-09-08  3:18                 ` David Miller
2010-09-08 12:14                   ` Alexey Kuznetsov
2010-09-13  1:23                     ` David Miller
2010-09-14  9:37                       ` Alexey Kuznetsov
2010-09-15 17:29                         ` David Miller
2010-09-07 16:35               ` David Miller
2010-09-07 16:57               ` Rick Jones
2010-09-08 14:06               ` ツ Leandro Melo de Sales
2010-09-08 15:24                 ` David Miller
2010-09-08 16:03                   ` ツ Leandro Melo de Sales

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