From owner-freebsd-hackers  Sat Dec 20 06:13:00 1997
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To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch)
cc: freebsd-hackers@FreeBSD.ORG
Subject: Re: 3com 3c509 card 
In-reply-to: Your message of "Sat, 20 Dec 1997 11:01:26 +0100."
             <199712201001.LAA29298@uriah.heep.sax.de> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Sat, 20 Dec 1997 06:14:38 -0800
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>Capriotti <capriotti@geocities.com> wrote:
>
>> I've heard that some 3com cards have only 3KB buffer; Have any of you 
>> heard of it ?
>
>No, i think the smallest possible constellation is 8 KB.  The

   The 3c509 has a 4K FIFO buffer which is divided into 2K send and a 2K
receive FIFOs. This is indeed quite small. The FIFO can easily be overrun,
causing packet loss.

-DG

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