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From: Julian Elischer <julian@ref.tfs.com>
Message-Id: <199510040558.WAA01172@ref.tfs.com>
Subject: Re: pls help diagnos ethernet slow
To: rompel@best.com
Date: Tue, 3 Oct 1995 22:58:31 -0700 (PDT)
Cc: freebsd-questions@freebsd.org
In-Reply-To: <199510040459.VAA11933@shell1.best.com> from "David Rompel" at Oct 3, 95 09:59:23 pm
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> 
> The cable is terminated 6ft of rg58 thin net  (one bud said something 
> about too short a cable.  Thats a new one, but considering..... )
sounds short to me....
> 
> when I transfer multiple large files they progressively get slower
a retry storm? ICMP wars?
> 
> Pings average under 1ms.
> 
> transfer (viewed via hash) is sporatic with a maybe 10 K at first, pause
> and several burst (~60k) at the rate I would expect with 1-1.5 sec 
> pauses inbetween with little or no trasfer durring that time.
netstat -in 1 ?

> 
> Basically HELP.....
> Dont know enough to straighten it out.  Others I know have nearly 
> same setup and no problems (except low end cards == <500k/sec)
> 
> ---------------------  heres the modified kernel config file --------
> # Modfide
> # GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
> #
> #	GENERIC,v 1.45.2.3 1995/06/05 21:50:41 jkh Exp
> #
> 
> machine		"i386"
> #cpu		"I386_CPU"
> #cpu		"I486_CPU"
personally I tend to leave both these in..
> cpu		"I586_CPU"
> ident		NewKernel
> maxusers	64
[..]
> options		"SCSI_DELAY=15"		#Be pessimistic about Joe SCSI device
> options		BOUNCE_BUFFERS		#include support for DMA bounce buffers
don't need these if you've got an ahc do you?
> options		UCONSOLE		#Allow users to grab the console
> controller	ahc0

have you turned off the tcp-extensions in /etc/sysconfig?

julian