From owner-freebsd-net@FreeBSD.ORG Mon Aug 9 16:08:02 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 94BDA16A4CE for ; Mon, 9 Aug 2004 16:08:02 +0000 (GMT) Received: from mail.star-sw.com (mail.star-sw.com [217.195.82.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id C8B8A43D3F for ; Mon, 9 Aug 2004 16:08:01 +0000 (GMT) (envelope-from nkritsky@star-sw.com) Received: from ARGON.star-sw.com (argon.star-sw.com [217.195.82.10]) by mail.star-sw.com (8.12.11/8.12.11) with ESMTP id i79G7x0u002353; Mon, 9 Aug 2004 20:07:59 +0400 (MSD) Received: from ibmka.star-sw.com ([192.168.32.130]) by ARGON.star-sw.com with Microsoft SMTPSVC(5.0.2195.5329); Mon, 9 Aug 2004 20:07:59 +0400 Date: Mon, 9 Aug 2004 20:07:59 +0400 From: "Nickolay A. Kritsky" X-Mailer: The Bat! (v1.49) Personal X-Priority: 3 (Normal) Message-ID: <128144951281.20040809200759@star-sw.com> To: sirola@fisica.unige.it In-reply-To: <87llgo1gvi.fsf@statpro.com> References: <878ycoag8v.fsf@statpro.com> <78135817453.20040809173545@star-sw.com> <87llgo1gvi.fsf@statpro.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 09 Aug 2004 16:07:59.0390 (UTC) FILETIME=[0A405BE0:01C47E2B] cc: freebsd-net@freebsd.org Subject: Re[2]: retransmissions with bge driver? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: "Nickolay A. Kritsky" List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Aug 2004 16:08:02 -0000 Hello sirola, Monday, August 09, 2004, 7:16:33 PM, sirola@fisica.unige.it wrote: sfui> Hi Nickolay, sfui> thanks for the tip, it works now. What could be the reason for the NIC sfui> working in half-duplex mode? Well, in short it looks like mbufs in the switch are getting filled too fast, what results in random packet drops. Another thing that can help is, perhaps, `flow-control' feature on the switch. But it is more complicated, and so, from technical POV is less preferrable. -- Best regards, ; Nickolay A. Kritsky ; SysAdmin STAR Software LLC ; mailto:nkritsky@star-sw.com