*BSD News Article 56243


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: Linux network code vs. FreeBSD
Date: 30 Nov 1995 08:38:19 GMT
Organization: Private BSD site, Dresden
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Message-ID: <49jqhr$ili@uriah.heep.sax.de>
References: <489b0t$65q@future.internexus.net> <48aeb8$mmj@sernews.raleigh.ibm.com> <48ilpg$1vd@buffnet2.buffnet.net> <48oj00$je3@uriah.heep.sax.de> <48u4t8$qvr@buffnet2.buffnet.net> <492rq6$r6g@uriah.heep.sax.de> <49f90v$3bi@buffnet2.buffnet.net>
Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
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shovey@buffnet.net (steve hovey) writes:

> This sort of thing is why I wonder if there is some sort of tcp or udp 
> time out/retry issue that might be relieved if it were loosened up alittle.  
> I just dont know enough of the low level issues to really play with it.

UDP does no retries of its own.  Yes, TCP backoff seems to be a
problem if your network lines are lousy (my lines to the US lose about
50 % of their packets).

Either you're suffering from some poorly-supported ethernet card, or
you've got problems with FreeBSD's T/TCP (transaction TCP).  But for
the latter, i've only heard reports about total failure on some term
servers, but not of poor performance.  (You can turn this feature off,
see /etc/sysconfig.)

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)