From owner-freebsd-questions Tue Oct 17 5:39:14 2000 Delivered-To: freebsd-questions@freebsd.org Received: from whale.sunbay.crimea.ua (whale.sunbay.crimea.ua [212.110.138.65]) by hub.freebsd.org (Postfix) with ESMTP id 97B4737B479 for ; Tue, 17 Oct 2000 05:39:08 -0700 (PDT) Received: (from ru@localhost) by whale.sunbay.crimea.ua (8.11.0/8.11.0) id e9HCcmk25607; Tue, 17 Oct 2000 15:38:48 +0300 (EEST) (envelope-from ru) Date: Tue, 17 Oct 2000 15:38:48 +0300 From: Ruslan Ermilov To: fooler Cc: freebsd-questions@FreeBSD.ORG Subject: Re: tcp window size 17520 Message-ID: <20001017153848.A24731@sunbay.com> Mail-Followup-To: fooler , freebsd-questions@FreeBSD.ORG References: <39EC17DC.C5180B0C@skyinet.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <39EC17DC.C5180B0C@skyinet.net>; from fooler@skyinet.net on Tue, Oct 17, 2000 at 05:11:56PM +0800 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Tue, Oct 17, 2000 at 05:11:56PM +0800, fooler wrote: > hi all, > > why is it www.freebsd.org web site is using tcp window size of 17520 > instead of 16384? > The receive buffer for TCP is initially set to net.inet.tcp.recvspace, but later is rounded up to the MSS for efficiency: buffer = roundup(buffer, mss); roundup(16384, 1460) = 17520 * mss=1460 on Ethernets with MTU=1500. > and why is it they dont enable rfc1323? > By default. The rc.conf(5) manpage explains why it is so. -- Ruslan Ermilov Oracle Developer/DBA, ru@sunbay.com Sunbay Software AG, ru@FreeBSD.org FreeBSD committer, +380.652.512.251 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message