From owner-freebsd-stable@FreeBSD.ORG Fri Aug 1 07:24:19 2003 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0E5AE37B401 for ; Fri, 1 Aug 2003 07:24:19 -0700 (PDT) Received: from ns.tagnet.ru (ns.tagnet.ru [80.78.104.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id CAA7C43F93 for ; Fri, 1 Aug 2003 07:24:17 -0700 (PDT) (envelope-from boris@tagnet.ru) Received: from dial-20.tagnet.ru ([80.78.104.20] helo=tagnet.ru) by ns.tagnet.ru with esmtp (Exim 4.20) id 19iapJ-0006Sf-TA; Fri, 01 Aug 2003 20:24:14 +0600 Message-ID: <3F2A780C.9050409@tagnet.ru> Date: Fri, 01 Aug 2003 20:24:12 +0600 From: Boris Kovalenko User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3) Gecko/20030312 X-Accept-Language: ru, en-us, en MIME-Version: 1.0 To: Will Saxon , freebsd-stable@freebsd.org References: <0E972CEE334BFE4291CD07E056C76ED8DB3095@bragi.housing.ufl.edu> In-Reply-To: <0E972CEE334BFE4291CD07E056C76ED8DB3095@bragi.housing.ufl.edu> Content-Type: text/plain; charset=KOI8-R; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: BGE & VLAN stranges X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Aug 2003 14:24:19 -0000 Will Saxon wrote: Hello! Have checked both MTU on Catalyst 2950 and BGE interface. Both are 1500. Also, I have no problems with 1500 MTU on FreeBSD 4.8R and FXP driver. Yours truly, Boris >>-----Original Message----- >>From: Boris Kovalenko [mailto:boris@tagnet.ru] >>Sent: Friday, August 01, 2003 2:23 AM >>To: freebsd-stable@freebsd.org >>Subject: BGE & VLAN stranges >> >> >>Hello! >> >> I have Compaq DL360G2 with Broadcom BCM5701 Gigabit Ethernet and >>FreeBSD 5.1R installed. There are no problems if I use bge as usual >>network card, but when I try to use 802.1Q vlans, I can't >>receive (only >>receive, sending is ok) packets more then 1456 bytes! What is the >>problem? BGE driver, VLAN driver or my network configuration? >> >> > >Boris, > >This sounds normal - your vlan probably has a max MTU of 1464 bytes (one of the ethernet standards uses this instead of 1500 I think). If you want to transmit larger frames, you have to up the MTU on your adapter and on the switch somehow. I think this is referred to as 'jumbo frames.' > >If you set the adapter MTU to 1464 you should not have problems sending and receiving, your packets will just get fragmented. > >-Will > > >