From owner-freebsd-net@FreeBSD.ORG Fri Mar 21 13:28:38 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 57FDF1065673 for ; Fri, 21 Mar 2008 13:28:38 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: from aurynhome1sv1.zirakzigil.org (mail.zirakzigil.org [82.63.178.63]) by mx1.freebsd.org (Postfix) with SMTP id 723AD8FC25 for ; Fri, 21 Mar 2008 13:28:36 +0000 (UTC) (envelope-from auryn@zirakzigil.org) Received: (qmail 53342 invoked by uid 98); 21 Mar 2008 13:28:35 -0000 Received: from 89.96.52.22 by aurynhome1sv1.zirakzigil.org (envelope-from , uid 89) with qmail-scanner-1.25 ( Clear:RC:0(89.96.52.22):. Processed in 0.039683 secs); 21 Mar 2008 13:28:35 -0000 X-Qmail-Scanner-Mail-From: auryn@zirakzigil.org via aurynhome1sv1.zirakzigil.org X-Qmail-Scanner: 1.25 (Clear:RC:0(89.96.52.22):. Processed in 0.039683 secs) Received: from unknown (HELO aurynmob2.giulioferro.it) (auryn@zirakzigil.org@89.96.52.22) by 0 with SMTP; 21 Mar 2008 13:28:35 -0000 Message-ID: <47E3B7F8.40307@zirakzigil.org> Date: Fri, 21 Mar 2008 14:28:24 +0100 From: Giulio Ferro User-Agent: Thunderbird 2.0.0.5 (X11/20070724) MIME-Version: 1.0 To: pyunyh@gmail.com References: <20080313033029.GF16972@cdnetworks.co.kr> <47D92F9D.4070701@zirakzigil.org> <20080314001704.GA22788@cdnetworks.co.kr> <47DA4DCD.6050304@zirakzigil.org> <20080314101555.GF22788@cdnetworks.co.kr> <47DA682E.9010504@zirakzigil.org> <20080314122708.GG22788@cdnetworks.co.kr> <47DA9BC0.8030205@zirakzigil.org> <20080317043945.GA2503@cdnetworks.co.kr> <47E298BD.7050807@zirakzigil.org> <20080320235420.GA70708@cdnetworks.co.kr> In-Reply-To: <20080320235420.GA70708@cdnetworks.co.kr> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Andrew Thompson , freebsd-net@freebsd.org Subject: Re: VLAN trunking and fragmentation X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Mar 2008 13:28:38 -0000 Pyun YongHyeon wrote: > > > > # ping -s 2000 192.168.100.2 > > PING 192.168.100.2 (192.168.100.2): 2000 data bytes > > 2008 bytes from 192.168.100.2: icmp_seq=0 ttl=64 time=0.264 ms > > 2008 bytes from 192.168.100.2: icmp_seq=1 ttl=64 time=1001.186 ms > > [...] > > > 2008 bytes from 192.168.100.2: icmp_seq=41 ttl=64 time=0.181 ms > > > > > > > > It would be great if you could understand why this happens... > > > > Try set tunable hw.re.msi_disable and let me know how it goes. > (Add hw.re.msi_disable="1" to /boot/loader.conf) > > You're spot on! ---------------------------------- # ping -c 200 -s 1472 192.168.100.2 PING 192.168.100.2 (192.168.100.2): 1472 data bytes 1480 bytes from 192.168.100.2: icmp_seq=0 ttl=64 time=0.192 ms 1480 bytes from 192.168.100.2: icmp_seq=1 ttl=64 time=0.151 ms 1480 bytes from 192.168.100.2: icmp_seq=2 ttl=64 time=0.155 ms 1480 bytes from 192.168.100.2: icmp_seq=3 ttl=64 time=0.150 ms 1480 bytes from 192.168.100.2: icmp_seq=4 ttl=64 time=0.151 ms 1480 bytes from 192.168.100.2: icmp_seq=5 ttl=64 time=0.149 ms 1480 bytes from 192.168.100.2: icmp_seq=6 ttl=64 time=0.153 ms 1480 bytes from 192.168.100.2: icmp_seq=7 ttl=64 time=0.149 ms [...] --- 192.168.100.2 ping statistics --- 200 packets transmitted, 200 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 0.148/0.159/1.472/0.093 ms ---------------------------------- What does that tunable do?