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To: linux-kernel@vger.kernel.org
Subject: Re: MTU and 2.4.x kernel
In-Reply-To: <200102152041.XAA21220@ms2.inr.ac.ru>
Reply-To: Pierfrancesco Caci <p.caci@tin.it>
From: Pierfrancesco Caci <ik5pvx@penny.ik5pvx.ampr.org>
Date: 18 Feb 2001 12:26:09 +0100
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:-> "kuznet" == kuznet  <kuznet@ms2.inr.ac.ru> writes:

    >> Over a radio link where 
    >> error rate causes exponential increases in probability of packet loss as

    > Another myth. All they do error correction and have so high latency,
    > that _increasing_ mtu only helps. And helps a lot.

Please don't break existing implementations. Some old hardware used in
the amateur radio world doesn't even accept an mtu longer than 256(*),
and the resulting packets will be silently chopped at the end. 
If you want to drop mtu lower than 512, please at least add a
CONFIG_I_NEED_A_GODDAMN_SMALL_MTU as an option.

Pf

(*) Kantronics TNCs are an example.




-- 

-------------------------------------------------------------------------------
 Pierfrancesco Caci | ik5pvx | mailto:p.caci@tin.it  -  http://gusp.dyndns.org
  Firenze - Italia  | Office for the Complication of Otherwise Simple Affairs 
     Linux penny 2.4.1 #1 Sat Feb 3 20:43:54 CET 2001 i686 unknown
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