From owner-freebsd-hackers  Fri Feb  7 13:17:30 1997
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To: Brian McGovern <bmcgover@cisco.com>
cc: support@cyclades.com, waz@cyclades.com, hackers@freebsd.org
Subject: Re: Flow control on Cyclades boards??? 
In-reply-to: Your message of "Sat, 08 Feb 1997 01:06:57 EST."
             <199702080606.BAA00343@bmcgover-pc.cisco.com> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Fri, 07 Feb 1997 13:17:11 -0800
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>Ok. I now have the boards up and running between machines, but I'm having a 
>problem with silo overflows almost constantly on all the currently running 
>ports. I'm using pppd (options listed below) to set up a number of ppp
>sessions between two pentium pro 200s. 
>
>I originally tried to run 32 of them at 115200. It failed miserably. I then
>dropped back to 16 at 115200. Then to 16 at 57600. Still got silo
>errors constantly.

   If you don't have the card configured for >1MB memory mapping, you'll want
to set it to that. I found in my testing here that accessing it is *much*
slower when it is mapped in low memory. Use the cytest.exe program from
Cyclades to change it.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project