From owner-freebsd-net@FreeBSD.ORG Sat Sep 15 17:25:11 2007 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 ACA3D16A418 for ; Sat, 15 Sep 2007 17:25:11 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outI.internet-mail-service.net (outI.internet-mail-service.net [216.240.47.232]) by mx1.freebsd.org (Postfix) with ESMTP id 83BB613C49D for ; Sat, 15 Sep 2007 17:25:11 +0000 (UTC) (envelope-from julian@elischer.org) Received: from mx0.idiom.com (HELO idiom.com) (216.240.32.160) by out.internet-mail-service.net (qpsmtpd/0.40) with ESMTP; Sat, 15 Sep 2007 10:25:10 -0700 X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (home.elischer.org [216.240.48.38]) by idiom.com (Postfix) with ESMTP id 276261263C7; Sat, 15 Sep 2007 10:25:10 -0700 (PDT) Message-ID: <46EC1575.4070401@elischer.org> Date: Sat, 15 Sep 2007 10:25:09 -0700 From: Julian Elischer User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 To: Randy Bush References: <46EAE78D.8060108@elischer.org> <46EC0E75.5070307@psg.com> In-Reply-To: <46EC0E75.5070307@psg.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD Net Subject: Re: BCE on FreeBSD and oversized packet acceptance. 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: Sat, 15 Sep 2007 17:25:11 -0000 Randy Bush wrote: >> what size is the actual maximal sized jumbo packet we will ever see? > > some transpac science community folk, who care more about speed trials > with big data sets than they do about over-stretching the ethernet crc, > use 9k jumbo frames. well that's the standard but the highest I've seen mentioned as a normal size is I think 9220 bytes.