From owner-freebsd-net@FreeBSD.ORG Fri Jun 17 11:32:39 2005 Return-Path: X-Original-To: freebsd-net@freebsd.org 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 4990216A41C for ; Fri, 17 Jun 2005 11:32:39 +0000 (GMT) (envelope-from meno.abels@gmail.com) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0878143D55 for ; Fri, 17 Jun 2005 11:32:38 +0000 (GMT) (envelope-from meno.abels@gmail.com) Received: by wproxy.gmail.com with SMTP id 55so1008175wri for ; Fri, 17 Jun 2005 04:32:38 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=cpxDoW/cj/4ZOzXwVI/440as3ULEuX+AHOBc1V+HjEi8rYPQLYZpjkikdQ6Ndep4qnrgqnGNQ0dZp5+5aIzhibLmf0CaT6/bYRPY+fPuMjBgp5sDtHjDY5z0frGLrdlC66/k+VzxWa4vntEzDPkHARbEBmTsB65jUAU56Z0qREk= Received: by 10.54.91.12 with SMTP id o12mr1046583wrb; Fri, 17 Jun 2005 04:32:37 -0700 (PDT) Received: by 10.54.25.64 with HTTP; Fri, 17 Jun 2005 04:32:37 -0700 (PDT) Message-ID: <344de287050617043219810b3@mail.gmail.com> Date: Fri, 17 Jun 2005 12:32:37 +0100 From: Meno Abels To: freebsd-net@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Subject: FreeBSD 5.4 802.1q and linux stalls X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: meno.abels@adviser.com List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Jun 2005 11:32:39 -0000 Hello, i have here a very strange problem which is in real a linux problem but it is triggered by freebsd. I run a lan on which are linux 2.6.8(debian= ) and freebsd 5.4 systems are connected to a unmanaged gigabit switch. All system= s uses this gigabit adapter: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet Everything works fine until i do on one freebsd box the following: ifconfig vlan0 172.20.21.1 netmask 255.255.255.0 vlan 2 vlandev re0 i just do this, there is nowhere any configuration for 802.1q on any othe= r machine on this lan.=20 What is happen now the freebsd continues to run without any problem, but all linuxs are stopping to understand any arp responses from a freebsd nor an other linux. So they stop to work over the time on this lan anymore. If I do "ifconfig vlan0 unplumb" it takes up to 10 minutes and the linux's are return to the working status as before the ifconfig vlan0...=20 I didn't not have any clue which network packet could cause these behavior = in a linux but there has to be one. Does anybody as any idea? On that lan there is UDP-Broadcast(spread) and multicast traffic(ganglia)= =20 also there are around 120 carp addresses configured on the 10 freebsd boxes= . Everything else is standard tcpip/nfs traffic. There is no firewall rules on the interfaces on thes linuxs or the freebsds. thanks alot meno=20 P.S. don't ask why i'am try on 802.1q it has something todo with the very high amount of the spread traffic which i try to seperate from some vpn tap/ethernet brigde interfaces.