From owner-freebsd-questions@FreeBSD.ORG Fri Mar 4 00:27:27 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CE25C16A4CE for ; Fri, 4 Mar 2005 00:27:27 +0000 (GMT) Received: from pedigree.cs.ubc.ca (pedigree.cs.ubc.ca [142.103.6.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7DBA843D3F for ; Fri, 4 Mar 2005 00:27:27 +0000 (GMT) (envelope-from kcai@cs.ubc.ca) Received: from granville.cs.ubc.ca (granville.cs.ubc.ca [142.103.7.20]) by pedigree.cs.ubc.ca (8.12.10/8.11.4) with ESMTP id j240RPJ5009329; Thu, 3 Mar 2005 16:27:25 -0800 (PST) Date: Thu, 3 Mar 2005 16:27:25 -0800 (PST) From: Kan Cai To: freebsd-questions@freebsd.org In-Reply-To: <6.2.1.2.2.20050303172241.00bfea50@cheyenne.wixb.com> Message-ID: References: <6.2.1.2.2.20050303172241.00bfea50@cheyenne.wixb.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed cc: Brad Penoff Subject: FreeBSD 4.11-RELEASE & SACK X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2005 00:27:27 -0000 Greetings, I've installed the standard FreeBSD 4.11-RELEASE and have realized that the sysctl option for enabling SACK in TCP is not available (net.inet.tcp.do_sack). Additionally, the tcp_sack.c file is not in the /usr/src/sys/netinet so I'm guessing this indicates that I need a patch. Hoping to be able to use SACK in FreeBSD 4.11-RELEASE, I wanted to ask : 1) Is my guess correct (Do I need a patch)? Or is my kernel configuration file missing an option? 2) Assuming I need a patch, what patch is generally recommended for using SACK under TCP in FreeBSD 4.11-RELEASE? Any help would be most appreciated. Thanks, ken