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Date:      Mon, 10 Sep 2001 14:31:57 -0600
From:      Charles Randall <crandall@matchlogic.com>
To:        'Jonathan Lemon' <jlemon@flugsvamp.com>, Julian Elischer <julian@elischer.org>
Cc:        kent@erix.ericsson.se, hackers@freebsd.org
Subject:   RE: How to force small TCP packets?
Message-ID:  <5FE9B713CCCDD311A03400508B8B30130828F421@bdr-xcln.corp.matchlogic.com>

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Out of curiosity, can ipfw+dummynet do something like this?

-----Original Message-----
From: Jonathan Lemon [mailto:jlemon@flugsvamp.com]
Sent: Monday, September 10, 2001 1:35 PM
To: Julian Elischer
Cc: Jonathan Lemon; kent@erix.ericsson.se; hackers@freebsd.org
Subject: Re: How to force small TCP packets?


On Mon, Sep 10, 2001 at 12:43:15PM -0700, Julian Elischer wrote:
> just set the MTU on the sender to something really small (120 byres)

No.  The data gets coalesced in the socket receive buffer on the other
end, remember?  So depending on how fast things are running, there may
or may not be enough data present to satisfy the "100 byte" read, which
is proably the edge case he is attempting to debug.
-- 
Jonathan

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