From owner-freebsd-stable Wed Apr 4 17:48:28 2001 Delivered-To: freebsd-stable@freebsd.org Received: from bitbucket.extern.uniface.nl (bitbucket.extern.uniface.nl [193.78.88.139]) by hub.freebsd.org (Postfix) with ESMTP id 8511E37B446 for ; Wed, 4 Apr 2001 17:48:23 -0700 (PDT) (envelope-from driehuis@playbeing.org) Received: from bh2.nl.compuware.com (unknown [172.16.17.82]) by bitbucket.extern.uniface.nl (Postfix) with ESMTP id 92EC08286; Thu, 5 Apr 2001 02:48:21 +0200 (CEST) Received: from trashcan.nl.compuware.com ([172.16.16.52]) by bh2.nl.compuware.com with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2650.21) id 2127J1XT; Thu, 5 Apr 2001 02:48:21 +0200 Received: from c1111.nl.compuware.com (c1111.nl.compuware.com [172.16.16.36]) by trashcan.nl.compuware.com (Postfix) with ESMTP id 513D1145A4; Thu, 5 Apr 2001 02:48:21 +0200 (CEST) Date: Thu, 5 Apr 2001 02:48:21 +0200 (CEST) From: Bert Driehuis X-Sender: bertd@c1111.nl.compuware.com To: "Jason T. Luttgens" Cc: freebsd-stable@freebsd.org Subject: RE: Network performance question In-Reply-To: <000001c0bd4d$45acfc30$0200010a@lucky> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 4 Apr 2001, Jason T. Luttgens wrote: > To: 'Karsten W. Rohrbach' , > 'Mike Smith' > Cc: 'Doug Hardie' , freebsd-stable@freebsd.org, > 'David W. Chapman Jr.' Please trim your cc list; I'd hazard that all people on their responded to you because they are on -stable to start with. > Some of my testing at work revealed a strange thing. The 3COM card in a > computer I have at work typically received 407-409 packets from another > computer transmitting (a Sony VAIO laptop with builtin Intel Etherexpress > Pro 10/100 card), then stopped seeing packets for some random number > (usually less than 2000), receive 407-409 packets again, and repeat the > cycle. Anyone know what that might mean? There is a known issue with the 3Com 3C905TX that causes a "problem" (dunno what the problem is) if the receive buffer fills beyond a certain percentage. I haven't looked at the xl driver, but it might be that you're hitting the bug and a watchdog timer unwedges the board (I seem to remember BSD/OS artificially limits the receive buffer *and* unwedges the card, but it's been years since I last went on a bughunt in that driver, before I switched to Intel 10/100 Pro B's). Cheers, -- Bert -- Bert Driehuis -- driehuis@playbeing.org -- +31-20-3116119 If the only tool you've got is an axe, every problem looks like fun! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message