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From: j@uriah.sax.de (J Wunsch)
Newsgroups: comp.os.386bsd.misc
Subject: Re: Auto-dialing, Auto-redialing under SLIP [FreeBSD 1.1]
Date: 17 Aug 1994 18:30:52 +0200
Organization: Private U**X site; member IN e.V.
Lines: 17
Message-ID: <32tdvsINN5r3@bonnie.sax.de>
References: <RICK.94Jul29131023@vox.trystero.com> <32j131$1i0@news.bu.edu> <CuJ6vp.8rv@calcite.rhyolite.com> <32ni5h$bj9@sundog.tiac.net>
NNTP-Posting-Host: bonnie.sax.de
bill@bhhome.ci.net (Bill Heiser) writes:
>The comparison I made was between a LINUX 1.1 system and a FreeBSD 1.1.5.1R
>system. I switched the same modems between systems. The interactive
>performance felt significantly better on FreeBSD than on LINUX. ...
Well, this sounds like the MTU problem. Look into the FreeBSD slip
implementation, there you will find an argumentation for a low MTU
when running SLIP over slow lines. This improves the interactive
response time by slightly increasing the packet overhead. Linux
traditionally uses an MTU of 1500 (same as for ethernet), FreeBSD
ships by default with 296.
--
cheers, J"org work: joerg_wunsch@tcd-dresden.de
private: joerg_wunsch@uriah.sax.de
Steinbach's Guideline for Systems Programming:
Never test for an error condition you don't know how to handle.