From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262803AbVAQN6X (ORCPT ); Mon, 17 Jan 2005 08:58:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262806AbVAQN6X (ORCPT ); Mon, 17 Jan 2005 08:58:23 -0500 Received: from ns1.q-leap.de ([153.94.51.193]:15271 "EHLO mail.q-leap.de") by vger.kernel.org with ESMTP id S262803AbVAQN5c (ORCPT ); Mon, 17 Jan 2005 08:57:32 -0500 Message-ID: <41EBC449.3090503@q-leap.com> Date: Mon, 17 Jan 2005 14:57:29 +0100 From: Peter Kruse Organization: Q-Leap Networks GmbH User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en MIME-Version: 1.0 To: linux-os@analogic.com Cc: linux-kernel@vger.kernel.org Subject: Re: Random packets loss under x86_64 - routing? References: <41E7E6D7.10303@q-leap.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, thanks for your reply linux-os wrote: > > When they 'disappear', use `arp -d hostname` to delete the > entry from the ARP tables. Then see if you can ping it. > It is possible that the destination machine got re-routed > and the new router's HW address wasn't updated in the > ARP tables. If this is the case, I don't know hot to 'fix' > it, but it's a new data-point. When you have dynamic routing, > there needs to be some way to update the ARP tables even though > they eventually expire. There is no router between sender and destination host, they are on the same subnet and connected on the same switch. > The fact that `ping -r` works seems to show that the ARP table > has stale entries in it. > Even directly after reboot when the arp table is empty? Peter -- Peter Kruse , Chief Software Architect Q-Leap Networks GmbH phone: +497071-703171, mobile: +49172-6340044