From owner-freebsd-net@FreeBSD.ORG  Wed Jun 10 05:40:03 2009
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 95C071065686
	for <freebsd-net@hub.freebsd.org>; Wed, 10 Jun 2009 05:40:03 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 840ED8FC25
	for <freebsd-net@hub.freebsd.org>; Wed, 10 Jun 2009 05:40:03 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n5A5e3h0052246
	for <freebsd-net@freefall.freebsd.org>; Wed, 10 Jun 2009 05:40:03 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n5A5e31R052245;
	Wed, 10 Jun 2009 05:40:03 GMT (envelope-from gnats)
Date: Wed, 10 Jun 2009 05:40:03 GMT
Message-Id: <200906100540.n5A5e31R052245@freefall.freebsd.org>
To: freebsd-net@FreeBSD.org
From: Takefu <takefu@airport.fm>
Cc: 
Subject: Re: kern/121257: [tcp] TSO + natd  -> slow outgoing tcp traffic
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: Takefu <takefu@airport.fm>
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 10 Jun 2009 05:40:03 -0000

The following reply was made to PR kern/121257; it has been noted by GNATS.

From: Takefu <takefu@airport.fm>
To: bug-followup@FreeBSD.org, vnovy@vnovy.net
Cc:  
Subject: Re: kern/121257: [tcp] TSO + natd  -> slow outgoing tcp traffic
Date: Wed, 10 Jun 2009 14:14:42 +0900

 > Dropped Receive Packets on Half-duplex 10/100 Networks
 >   ------------------------------------------------------
 >   If you have an Intel PCI Express adapter installed, running at 10 or 
 >   100 Mbps, half-duplex, with TCP Segment Offload (TSO) enabled, you may 
 >   observe occasional dropped receive packets.  To work around this 
 >   problem, disable TSO, or update the network to operate in full-duplex 
 >   and/or 1 Gbps.
 
 http://downloadmirror.intel.com/14614/eng/rel_notes_v14_0.txt
 
 :-)